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    Item ID number:
    5419909
    Date:
    14 July 1931 (6 June 1917)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10986
    [Patent number 22217, sale numbers 579 and 580]. Title assigned by Library and Archives Canada. Patent granting Thomas Jones and Harry Lake Dwelle northeast 
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