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All Patents in class 212/223
Patents 1 - 4 of 4
Number	Date	Patentee	Title	Type
24,912	Jul. 26, 1859	J.Y. Parce	Hoisting Crane	cranes
233,159	Oct. 12, 1880	J.B. Mooney	Steamboat-staging	nautical
259,685	Jun. 20, 1882	J.B. Mooney, J.L. Haven	Staging for steamboats	nautical
715,338	Dec. 09, 1902	H.N. Covell, C.A. Baechtold	Swinging-gear for derrick engine	hoists, winches, come-alongs

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