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    Item ID number:
    5421113
    Date:
    25 September 1944 (22 February 1922)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10992
    [Patent no. 23540, sale no. 121]. Title assigned by Library and Archives Canada. Patent granting EC Lawrence and Charles Alfred Bradbrooke Frl. northeast 
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