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    Item ID number:
    5420455
    Date:
    29 November 1935 (6 June 1917)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10989
    [Patent no. 22795, sale no. 911]. Title assigned by Library and Archives Canada. Patent granting LW Barrett, Albert N. Thorssen and Theodore A
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