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  1. 1
    1 digital object(s)
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5405561
    Date:
    19 August 1915 (30 October 1914)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10964
    [Patent no. 17541, sale numbers 2104.5, 2105 and 2106]. Robinson (Ont.) Title assigned by Library and Archives Canada. Patent granting the John Harrison and 
  2. 2
    No digital object
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5418898
    Date:
    16 May 1928 (6 May 1902)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10981
    [Patent no. 21169, sale no. 1758]. Robinson (Ont.) Title assigned by Library and Archives Canada. Patent granting the John Harrison and Sons Company Limited 
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