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    Item ID number:
    5420879
    Date:
    20 January 1942 (16 December 1908)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10991
    [Patent no. 23266, sale numbers 638-641]. Title assigned by Library and Archives Canada. Patent granting JC Simpson, Harry E. Narey and Benjamin Albert Funk 
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