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US Patent: 951,526
Screw Driver Attachment
Screw holding screwdriver
Patentee:
Elmer J. Douglas (exact or similar names) - South Albany, VT

USPTO Classifications:
81/453

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Willard F. Ames
Elwin L. Graves
Patent Dates:
Applied: Jul. 26, 1909
Granted: Mar. 08, 1910

Patent Pictures:
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