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US Patent: 755,504
Variable Speed Mechanism
Patentees:
Charles F. Laur - Cincinnati, OH
Albert E. Robinson - Covington, KY

USPTO Classifications:
74/329, 74/359

Tool Categories:

Assignees:
American Tool Works Co. - Cincinnati, OH

Manufacturer:
Not known to have been produced

Witnesses:
Oliver B. Kaiser
Luise Beck

Patent Dates:
Applied: Oct. 19, 1903
Granted: Mar. 22, 1904

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for American Tool Works Co.
Description:
Wood & Wood - patent attorneys

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