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    Item ID number:
    5421155
    Date:
    31 October 1944 (16 June 1928)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10992
    [Patent number 23591, sale numbers 72 and 73]. Title assigned by Library and Archives Canada. Patent granting JGF Swayzie and Warwick Stanley Meakin 
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