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  1. 1
    1 digital object(s)
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5404798
    Date:
    12 August 1912 (4 December 1903)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10961
    [Patent no. 16665, sale no. 1911]. Burpee (Ont.) Title assigned by Library and Archives Canada. Patent granting Richard Roberts, Hiram Frank Slater, 
  2. 2
    1 digital object(s)
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5404787
    Date:
    6 August 1912 (31 October 1898)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10961
    [Patent no. 16654, sale numbers 1313, 1314, 1315, and 1316]. Burpee (Ont.) Title assigned by Library and Archives Canada. Patent granting William A Thorburn 
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