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US Patent: 1,782,927
Electric power device
Patentee:
James S. Knowlson (exact or similar names) - Hinsdale, IL

USPTO Classifications:
310/83, 74/16

Tool Categories:
handheld power tools : handheld power rotary tools

Assignees:
Speedway Mfg. Co. - Chicago, IL

Manufacturer:
Speedway Mfg. Co. - Chicago, IL

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 05, 1928
Granted: Nov. 25, 1930

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Speedway Mfg. Co.

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