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All Patents in class 192/85.24
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,824,700	Sep. 22, 1931	L.R. Williamson	Hydraulically operated reversing mechanism	tapping machines
1,938,780	Dec. 12, 1933	B. Sassen, L.F. Nenninger	Power Operated Clutch for Machine Tools	metalworking power transmission

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