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US Patent: D34,540
Design For A Wrench
Patentee:
Frank H. Engstrom (exact or similar names) - Cambridge Springs, PA

USPTO Classifications:
D8/28

Tool Categories:
wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. P. Swett
T. H. Butler
John D. Gage
J. K. Gage
Patent Dates:
Applied: Apr. 15, 1901
Granted: May 21, 1901

Patent Pictures:
Frank H. Engstrom design patent May 21, 1901
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Description:
The design shows a combination hex and octagon box end wrench, with a flat oval shank and round handle.

Term of patent 7 years.

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