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  1. 1
    Digitized in colour from the original in 2019-2020.
    1 digital object(s)

    [Patent no. 15187, sale no. 1242]

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5403340
    Date:
    21 August 1908
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10953
    [Patent no. 15187, sale no. 1242]. Campbell (Ont.) Title assigned by Library and Archives Canada. Patent granting George M. Pearson, William Dougherty 
  2. 2
    No digital object

    [Patent no. 21895, sale no. 4088]

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5419601
    Date:
    17 March 1930 (20 May 1905)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10984
    [Patent no. 21895, sale no. 4088]. Campbell (Ont.) Title assigned by Library and Archives Canada. Patent granting Albert E. Dougherty and William Dougherty 
  3. 3
    Digitized in colour from the original in 2019-2020.
    1 digital object(s)

    [Patent no. 14461, sale numbers 677 and 678]

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5402638
    Date:
    3 July 1906 (27 February 1907 and 10 August 1892)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10950
    [Patent no. 14461, sale numbers 677 and 678]. Mills (Ont.) Title assigned by Library and Archives Canada. Patent granting David Sloss Jr. and William E 
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