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US Patent: 809,372
Variable-speed gear
Patentee:
Emil A. Hoefer - Freeport, IL

USPTO Classifications:
74/369

Tool Categories:
metalworking machines : drilling and boring : drill presses
woodworking machines : wood drilling and boring : drill presses

Assignees:
Hoefer Manufacturing Co. - Freeport, IL

Manufacturer:
Hoefer Manufacturing Co. - Freeport, IL

Witnesses:
D. B. Breed
Charles C. Wolf

Patent Dates:
Applied: Jul. 29, 1905
Granted: Jan. 09, 1906

Patent Pictures:
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"Vintage Machinery" entry for Hoefer Manufacturing Co.

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