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US Patent: 597,418
Regulation of dynamo-electric machinery
Patentee: Frederick Ayres Johnson (exact or similar names) - Binghamton, NY USPTO Classifications: 310/191, 310/220, 322/52, 388/835 Tool Categories: electrical devices : electric motors Assignees: None Manufacturer: Stow Mfg. Co. - Binghamton, NY Witnesses: Howard Supple J. M. Johnson	Patent Dates: Applied: Apr. 14, 1897 Granted: Jan. 18, 1898 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Stow Mfg. Co.
Description: This patent date is listed in a Stow Mfg. Co. catalog for a "Bi-polar Stow multi-speed motor".

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