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US Patent: 2,726,563
Rachet Wrench Provided with Supplemental Head Turnig Means
Patentee: George William Blackburn (exact or similar names) - Fulham, London, England USPTO Classifications: 81/57.39, 81/58.1, 81/60 Tool Categories: wrenches : ratchet wrenches wrenches : wrench adjustment types : auxiliary levers on wrenches Assignees: None Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Mar. 23, 1953 Granted: Dec. 13, 1955 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Stan Schulz
Description: Emory L. Groff - patent attorney Claims priority, application in Great Britain, 29 Mar, 1952.

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