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US Patent: 789,572
Controller for electric motors
Patentee:
Charles A. Stauffer - Elizabeth, NJ

USPTO Classifications:
318/274, 318/367, 318/381

Tool Categories:

Assignees:
Diehl Manufacturing Co. - Elizabeth, NJ

Manufacturer:
Not known to have been produced

Witnesses:
Henry J. Miller
Gustave C. Marx

Patent Dates:
Applied: Sep. 01, 1904
Granted: May 09, 1905

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Diehl Manufacturing Co.

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