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US Patent: 539,423
Ratchet Drill
Patentee:
Jacob Emig - Buffalo, NY

USPTO Classifications:
192/43.2, 192/44, 408/122

Tool Categories:
woodworking tools : hand drills

Assignees:
Gustavus A. Schaefer - Buffalo, NY
Henry L. Schaefer - Buffalo, NY

Manufacturer:
The Keystone Mfg. Co. - Buffalo, NY

Witnesses:
James Sangster
Henry C. Ashbery
Harriet Johnson

Patent Dates:
Applied: Apr. 10, 1894
Granted: May 21, 1895

Patent Pictures: [ 1 | 2 ]
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Description:
James Sangster - patent attorney

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