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  1. 1
    No digital object
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5418728
    Date:
    9 July 1927 (15 June 1926)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10978
    [Patent no. 20958, sale no. 15]. Title assigned by Library and Archives Canada. Patent granting William A. Sowden, Ernest Willis and AW Brown lot M and part 
  2. 2
    No digital object
    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5418780
    Date:
    17 October 1927 (26 September 1927)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10978
    [Patent no. 21024, sale no. 19]. Title assigned by Library and Archives Canada. Patent granting William A. Sowden and George M. Henry lot N from plan CLSR 
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