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  1. 1
    No digital object

    [Patent number 18611, sale numbers 339, 340 and 341]

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5417047
    Date:
    17 July 1919 (14 June 1911)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10968
    [Patent number 18611, sale numbers 339, 340 and 341]. Title assigned by Library and Archives Canada. Patent granting William C. Bradburn, Frank P
  2. 2
    No digital object

    [Patent no. 22312, sale numbers 57-60]

    Archives / Collections and Fonds
    Item (linked)
    Textual material
    Item ID number:
    5419999
    Date:
    22 January 1932 (14 June 1911)
    Source:
    Government
    Reference:
    R216, RG10-D-11-a, Volume number: 10986
    [Patent no. 22312, sale numbers 57-60]. Title assigned by Library and Archives Canada. Patent granting Frederick A. Kilbourn (In Trust) and Frank P
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