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US Patent: 1,111,833
Nut-tapping machine
Patentee:
Frederick C. Hoffman (exact or similar names) - Thomaston, CT

USPTO Classifications:
221/184, 470/101, 470/178

Tool Categories:

Assignees:
Blake & Johnson Co. - Waterbury, CT

Manufacturer:
Not known to have been produced

Witnesses:
Lancaster P. Clark
Robert P. Lewis

Patent Dates:
Applied: Aug. 15, 1912
Granted: Sep. 29, 1914

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Blake & Johnson Co.

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