Patents for Charles C. Zenk


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Patents for Charles C. Zenk
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
1,255,681	Feb. 05, 1918	C.C. Zenk	Commutator	motor commutators
1,360,165	Nov. 23, 1920	C.C. Zenk	Method for making commutators	machine making
1,360,166	Nov. 23, 1920	C.C. Zenk	Commutator	motor commutators