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US Patent: 1,369,408
Commutator and commutator-bar
Patentee: Frederick Diehl (exact or similar names) - Elizabeth, NJ 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: Unknown	Patent Dates: Applied: Apr. 30, 1918 Granted: Feb. 22, 1921 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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