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US Patent: 1,796,352
Automatic Tapping Head
Patentee:
Sydney C. Watson (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
408/133, 470/182, 74/377

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

Assignees:
Bradford Machine Tool Co. - Cincinnati, Hamilton County, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 14, 1929
Granted: Mar. 17, 1931

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Bradford Machine Tool Co.

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