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US Patent: D421,888
Ratcheting Screwdriver Handle
Patentees: Mark J. Knapp (exact or similar names) - Kenosha, WI Joseph R. Hoepfl (exact or similar names) - Greenfield, WI Christopher D. Thompson (exact or similar names) - Milwaukee, WI USPTO Classifications: D8/83, D8/85 Tool Categories: screwdrivers : screwdriver handles Assignees: Snap-On Tools Co. - Kenosha, WI Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: May 20, 1999 Granted: Mar. 28, 2000 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Stan Schulz Snap-On Tools Company History
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