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US Patent: 991,630
Yielding Tapping Attachment
Patentee:
Frank P. Miller (exact or similar names) - Meadville, Crawford County, PA

USPTO Classifications:
279/53, 408/140, 464/42, 470/103

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

Assignees:
McCrosky Tool Corp. - Meadville, Crawford County, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 11, 1910
Granted: May 09, 1911

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for McCrosky Tool Corp.

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