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US Patent: 841,396
Machine for Threading Pipes
Patentee:
Frederick W. Hoefer - Freeport, Stephenson County, IL

USPTO Classifications:
408/175, 470/188, 470/67, 470/75

Tool Categories:
metalworking machines : pipe threading machines

Assignees:
Hoefer Manufacturing Co. - Freeport, Stephenson County, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 14, 1905
Granted: Jan. 15, 1907

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Hoefer Manufacturing Co.

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