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US Patent: 1,255,681
Commutator
Patentee: Charles C. Zenk (exact or similar names) - Wilkinsburg, PA USPTO Classifications: 310/235 Tool Categories: electrical devices : electric motors : motor commutators Assignees: Diehl Mfg. Co. - Elizabeth, NJ Manufacturer: Not known to have been produced Witnesses: C. Zenk Max H. Seolovitz	Patent Dates: Applied: Jul. 08, 1912 Granted: Feb. 05, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Diehl Mfg. Co.

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