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US Patent: 613,853
Electric regulators
Patentee:
William H. Chapman (exact or similar names) - Portland, ME

USPTO Classifications:
322/25, 322/80, 335/62, 338/194, 338/98

Tool Categories:

Assignees:
Belknap Motor Co. - Portland, ME

Manufacturer:
Not known to have been produced

Witnesses:
Mary E. Willard
William J. Knowlton

Patent Dates:
Applied: Mar. 24, 1898
Granted: Nov. 08, 1898

Patent Pictures:
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