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US Patent: 500,274
Regulating Switch for Electric Elevators
Patentees:
Alonzo B. See (exact or similar names) - Brooklyn, NY
Walter L. Tyler (exact or similar names) - Brooklyn, NY

USPTO Classifications:
388/852

Tool Categories:
electrical devices : electric motors : motor controls

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Nov. 12, 1892
Granted: Jun. 27, 1893

Patent Pictures:
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