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All Patents in class 254/313
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
671,177	Apr. 02, 1901	J.V. Beekman	Derrick-engine	hoists, winches, come-alongs
710,954	Oct. 14, 1902	H.N. Covell	Drum-reversing device for winding-engines	hoists, winches, come-alongs

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