All Patents in class 73/470


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All Patents in class 73/470
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,164,900	Jul. 04, 1939	J.C. Campbell	Dynamic Balancer for Machine Tools
	2,241,637	May 13, 1941	A.H. Dall, H. Ernst	Dynamic Balancing Mechanism for Machine Tools