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US Patent: 925,181
Screw Cutting Device
Patentee:
Louis F. Hart (exact or similar names) - Cleveland, Cuyahoga County, OH

USPTO Classifications:
408/110, 408/153, 408/56, 470/188

Tool Categories:
metalworking tools : tap and die holders
metalworking tools : taps and dies

Assignees:
Hart Mfg. Co. - Cleveland, Cuyahoga County, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 25, 1907
Granted: Jun. 15, 1909

Patent Pictures:
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