US Patent: 518,913 - Commutator-brush


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US Patent: 518,913

Commutator-brush

Patentee:

George W. Brown (exact or similar names) - Deering, ME

USPTO Classifications:

310/228

Tool Categories:

electrical devices : electric motors : motor brushes

Assignees:

None

Manufacturer:

Belknap Motor Co. - Portland, ME

Witnesses:

Unknown

Patent Dates:
Granted:	Apr. 24, 1894

Patent Pictures:

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Description:

A letter dated 1894-11-19 from Belknap Motor Co. says at the top, "Composite Graphite and Woven Wire Brushes a Specialty. Patented April 24, 1894." A four-digit telephone number is given. George W. Brown was president and General Manager.