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Subject heading: Gray Frank M

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    Archives / Collections and Fonds
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    Textual material
    Item ID number:
    1602977
    Date:
    1909
    Source:
    Government
    Reference:
    RG6-A-1, Volume number: 137, File number: 538
    AT Thompson - Petition of Frank M. Gray for the sanction of an act (application for patent act). Thompson AT Gray Frank M
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