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GB Patent: GB-154,507
Improvements in or relating to brush lifting and short circuiting means for induction motors
Patentee: Albert Parkinson (exact or similar names) - Guiseley, Leeds, England USPTO Classifications: Tool Categories: electrical devices : electric motors : induction motors Assignees: F. & A. Parkinson Ltd. - Guiseley, Leeds, England Manufacturer: F. & A. Parkinson Ltd. - Guiseley, Leeds, England Witnesses: Unknown	Patent Dates: Applied: Sep. 19, 1919 Granted: Dec. 02, 1920 Patent Pictures: [ 1 | 2 ] Espacenet patent Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for F. & A. Parkinson Ltd.
Description: Seen on a 2 HP 3 phase motor made by F. & A. Parkinson Ltd. of Leeds.

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