Patents for Edwin C. Henn


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Patents for Edwin C. Henn
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
470,497	Mar. 08, 1892	W.S. Loveland, E.C. Henn	Journal	metalworking machine mechanisms
635,853	Oct. 31, 1899	E.C. Henn	Metal Working Machine	multiple spindle lathes
667,311	Feb. 05, 1901	E.C. Henn	Metal Turning Tool	lathe tools