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US Patent: 1,361,335
Bit Socket or Chuck Tool Holder/ Screwdriver
Patentee: John E. Kampe (exact or similar names) - Waltham, MA USPTO Classifications: 279/46.3 Tool Categories: trade specific : watchmaker screwdrivers : screwdriver handles Assignees: None Manufacturer: John E. Kampe - Waltham, MA Witnesses: Unknown	Patent Dates: Applied: Jan. 23, 1919 Granted: Dec. 07, 1920 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: Quick release pressure fit chuck for tools. Kampe was a Swedish immigrant who also made his own tools for sale

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