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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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