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US Patent: 274,912
Screw Driver
Screw holding screwdriver
Patentee:
Martin B. Crawford (exact or similar names) - Terre Haute, IN

USPTO Classifications:
81/453

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
None

Manufacturer:
Chicago Screwdriver Works - Chicago, IL

Witnesses:
A. H. Kildow
Charles E. Temple

Patent Dates:
Applied: Dec. 06, 1882
Granted: Apr. 03, 1883

Patent Pictures: [ 1 | 2 | 3 | 4 | 5 ]
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Description:
Samples marked with the manufacturer name and Patent date. One is 13" long the other is 6 1/4" long. "Oddly enough" the second page of the Patent drawing shows it as an attachment to an early 1878 Gay's Patent ratchet screwdriver.

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