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US Patent: 204,812
Improvement in Screw-Drivers
Patentee:
Richard S. Gladding - Bristol, RI

USPTO Classifications:
279/24, 7/167, 81/438

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Joseph A. Miller
Joseph A. Miller, Jr.

Patent Dates:
Applied: Nov. 07, 1877
Granted: Jun. 11, 1878

Patent Pictures:
USPTO pdf tiff
Google Patents
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