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Subject heading: Inventions
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  1. 1
    p. 186549
    4 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence March 07, 1883

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    540457
    Date:
    March 07, 1883
    Source:
    Private
    Reference:
    MG26-A, Volume number: 392, Microfilm reel number: C-1760
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence March 07, 1883. Inventions - Radio Transmission
  2. 2
    p. 238875
    2 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence December 10, 1889

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    528544
    Date:
    December 10, 1889
    Source:
    Private
    Reference:
    MG26-A, Volume number: 480, Microfilm reel number: C-1798
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence December 10, 1889. Inventions
  3. 3
    p. 56817
    2 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence September 04, 1890

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    497988
    Date:
    September 04, 1890
    Source:
    Private
    Reference:
    MG26-A, Volume number: 137, 137/X1, Microfilm reel number: C-1561
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence September 04, 1890. Railways - Windsor & Annapolis Inventions - Railway Leahy 
  4. 4
    p. 55348
    2 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence March 09, 1889

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    497804
    Date:
    March 09, 1889
    Source:
    Private
    Reference:
    MG26-A, Volume number: 134, 134/X1, Microfilm reel number: C-1560
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence March 09, 1889. Railways - Government Ownership Railways - Government Inventions 
  5. 5
    p. 163076A
    4 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence December 26, 1878

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    542439
    Date:
    December 26, 1878
    Source:
    Private
    Reference:
    MG26-A, Volume number: 353, Microfilm reel number: C-1714
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence December 26, 1878. Inventions - Steel Rail Joint Railways - Steel Rail Joint
  6. 6
    p. 206706
    3 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence March 29, 1886

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    560471
    Date:
    March 29, 1886
    Source:
    Private
    Reference:
    MG26-A, Volume number: 424, Microfilm reel number: C-1775
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence March 29, 1886. Inventions - Farm Machinery
  7. 7
    p. 163080
    2 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence January 03, 1879

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    563240
    Date:
    January 03, 1879
    Source:
    Private
    Reference:
    MG26-A, Volume number: 353, Microfilm reel number: C-1714
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence January 03, 1879. Inventions - Steel Rail Joint Railways - Steel Rail 
  8. 8
    p. 536
    1 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence April 09, 1872

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    547783
    Date:
    April 09, 1872
    Source:
    Private
    Reference:
    MG26-A, Volume number: 520, Microfilm reel number: C-31
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence April 09, 1872. Howell Hf-patent Applic Inventions - Patent Applic
  9. 9
    For a link to the digitized images, please see the "Finding aid" section of this record.
    1 digital object(s)

    WO 44. Ordnance Office In-Letters [textual record (chiefly microform)]

    Archives / Collections and Fonds
    Series
    Textual material
    Item ID number:
    105238
    Date:
    1788-1856
    Source:
    Private
    Reference:
    R14028-3-1-E, MG13-WO44
    WO 44. Ordnance Office In-Letters [textual record (chiefly microform)]. Rideau Canal (Ont.) Canada - History, Military Canada - History - War of 1812 
  10. 10
    p. 762
    1 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence May 30, 1868

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    546098
    Date:
    May 30, 1868
    Source:
    Private
    Reference:
    MG26-A, Volume number: 514, Microfilm reel number: C-26
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence May 30, 1868. Defence-facts & Inventions. Letterbook 11 Outgoing correspondence 
  11. 11
    p. 279
    1 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence November 08, 1890

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    561311
    Date:
    November 08, 1890
    Source:
    Private
    Reference:
    MG26-A, Volume number: 532, Microfilm reel number: C-37
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence November 08, 1890. Schreiber C Snitzenich Hc - Railway Chair Invention Inventions 
  12. 12
    p. 25282
    3 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence May 06, 1881

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    526399
    Date:
    May 06, 1881
    Source:
    Private
    Reference:
    MG26-A, Volume number: 61, Microfilm reel number: C-1509
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence May 06, 1881. Fenians - Surveillance Inventions - Steam Motor
  13. 13
    p. 207
    1 digital object(s)

    [Correspondence] [textual record] Macdonald, John Alexander Correspondence January 28, 1871

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    538571
    Date:
    January 28, 1871
    Source:
    Private
    Reference:
    MG26-A, Volume number: 518, Microfilm reel number: C-29
    [Correspondence] [textual record] Macdonald, John Alexander Correspondence January 28, 1871. Inventions Scatcherd T - Invention
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