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All Patents in class 92/23
Patents 1 - 6 of 6
Picture	Number	Date	Patentee	Title
	38,606	May 19, 1863	C.E. Rymes	Improvement in hydraulic presses
	43,912	Aug. 23, 1864	M. Hittinger	Improvement in hydraulic presses
	823,480	Jun. 12, 1906	J.P. McLeod	Drop Hammer
	1,078,320	Nov. 11, 1913	J.M. Stratton	Pump
	2,394,488	Feb. 05, 1946	V.G. Klein, L.C. Rotter	Lubricating Apparatus
	2,831,551	Apr. 22, 1958	W.A. Ross, I.A. Weaver	Safety device for lifting jacks

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