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Patent number:
Patent Date:
US Patent: 913,691
Variable-speed motor
Patentee:
James Burke (
exact
or
similar
names) - Erie, PA
USPTO Classifications:
307/12
,
310/131
,
388/808
Tool Categories:
electrical devices
:
electric motors
:
DC motors
electrical devices
:
electric motors
:
variable speed motors
Assignees:
Burke Electric Co.
- Erie, PA
Manufacturer:
Burke Electric Co.
- Erie, PA
Witnesses:
C. V. Edwards
A. O. Chapin
Patent Dates:
Applied:
May 17, 1905
Granted:
Mar. 02, 1909
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Burke Electric Co.
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