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    Item ID number:
    5420556
    Date:
    28 April 1937 (6 May 1903)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10989
    [Patent no. 22903, sale no. 43]. Title assigned by Library and Archives Canada. Patent granting James EP Prendergast, Walter M. McPherson and Jack McPherson 
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