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US Patent: 1,493,353
Ratchet Tool Ratchet Screwdriver, &c.
Patentee: George O. Leopold (exact or similar names) - Philadelphia, PA USPTO Classifications: 192/43.1, 192/44, 81/29 Tool Categories: screwdrivers : screwdriver mechanisms : ratcheting screwdrivers Assignees: North Brothers Manufacturing Co. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 07, 1922 Granted: May 06, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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