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US Patent: 407,740
Wrench
Patentee:
Horatio B. Morrison - Britt, IA

USPTO Classifications:
81/177.9

Tool Categories:
wrenches : wrench adjustment types : angle adjustable wrenches

Assignees:
Horatio B. Morrison - Britt, IA
Francis M. Rogers - Mason City, IA
Charles B. Hughes - Mason City, IA
William H. Cottrell - Mason City, IA

Manufacturer:
Not known to have been produced

Witnesses:
Henry G. Dieterich
A. E. Doyle
Frank Scribner
Wesley Aldridge

Patent Dates:
Applied: Aug. 10, 1888
Granted: Jul. 23, 1889

Patent Pictures:
Horatio B. Morrison patent July 23, 1889
USPTO pdf tiff
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Description:
Ratchet pawls provide angle adjustment for double open-end wrenches.

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