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Patents for Mary A. Cook
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
RE13,743Jun. 09, 1914F. HardingeWatchman's clock
1,226,657May 22, 1917F. HardingeTool holdermetal lathe accessories and attachments
1,252,346Jan. 01, 1918F. HardingeLathe headstockmetal lathes
1,285,820Nov. 26, 1918C. Vergan, G. Mayer, E.J. SmithAutomatic Milling Machinemilling machines
1,315,832Sep. 09, 1919F. HardingeSeal for fastening devices
1,322,564Nov. 25, 1919F. HardingeWatchman's clock
1,330,184Feb. 10, 1920F. HardingeFastener for closuresmetal lathes
1,334,242Mar. 16, 1920F. HardingeGear mechanismmetal lathes
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