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    Item ID number:
    5418587
    Date:
    23 September 1926 (1 September 1920)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10977
    [Patent no. 20773, sale no. 2]. Title assigned by Library and Archives Canada. Patent granting Hugh W. Johuslau MD, William E. Egan and George H
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