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  1. 1
    No digital object
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5418584
    Date:
    20 September 1926 (1 September 1920)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10977
    [Patent no. 20770, sale no. 16]. Title assigned by Library and Archives Canada. Patent granting Henry Nelson and Henry Albert Prall-Pierce lot 16 Pither's 
  2. 2
    No digital object
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5416820
    Date:
    8 July 1918 (27 May 1918)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10967
    [Patent no. 18267, sale no. 175]. Title assigned by Library and Archives Canada. Patent granting Henry Albert Prall - Pierce lot 4C (Long Sault IR #12) from 
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