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    Item ID number:
    5419348
    Date:
    23 May 1929 (15 April 1929)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10983
    [Patent no. 21638, sale no. 917]. Title assigned by Library and Archives Canada. Patent granting Wm. J. Stewart and Emil Palonpera S 1/2 - South 
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