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US Patent: 2,858,553
Releasable Thread Cutting Tool Holder With Reversible Clutch Means for Opposite Hand Thread Cutting
Patentee:
John A. Bearhalter (exact or similar names) - North Wales, Montgomery County, PA

USPTO Classifications:
408/139, 470/83, 470/96

Tool Categories:
metalworking machines : drilling and boring : tapping heads and chucks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Aug. 24, 1955
Granted: Nov. 04, 1958

Patent Pictures:
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