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US Patent: 575,734
Drilling or similar tool
Patentee:
John M. Rauhoff (exact or similar names) - Chicago, IL

USPTO Classifications:
74/127, 74/424.89

Tool Categories:
screwdrivers : screwdriver mechanisms : spiral screwdrivers

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Thomas B. McGregor
Thomas F. Sheridan

Patent Dates:
Applied: Apr. 04, 1896
Granted: Jan. 26, 1897

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Steve Gosselin
Description:
Assumed to have been produced, See Patent 588879 and 560281 for more info.

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