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US Patent: 900,122
Yielding Bit and Tap Chuck
Patentee:
William L. Procunier (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
408/140, 408/239R, 464/44, 470/103

Tool Categories:
metalworking machines : drilling and boring : drill presses : drill press chucks
metalworking tools : tap and die holders

Assignees:
None

Manufacturer:
William L. Procunier ; Procunier Safety Chuck Co. - Chicago, Cook County, IL

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 10, 1907
Granted: Oct. 06, 1908

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for William L. Procunier ; Procunier Safety Chuck Co.

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