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All Patents in class 74/412.0TA
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,236,854	Apr. 01, 1941	W.F. Ocenasek	Inertia eliminator
	3,816,016	Jun. 11, 1974	E.W. Schatzman	Power drilling machine with resistance triggered retraction

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