All Patents in class 81/57.43


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All Patents in class 81/57.43
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	698,418	Apr. 22, 1902	R.F. Sprague	Power-driven tool
	1,903,514	Apr. 11, 1933	F.W. Piche, H.H. Merriman	Rapid Rotating Socket Wrench
	2,073,967	Mar. 16, 1937	A. Kiefer	Bolt turning machine and the like
	2,292,391	Aug. 11, 1942	C.D. Burbank, H.H. Merriman	Improved Ratchet Wrench