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US Patent: 370,447
Adjustable Wrench
Patentee:
Charles M. Brown (exact or similar names) - Rockford, IL

USPTO Classifications:
81/320, 81/336, 81/357

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. J. Nottingham
G. F. Downing
F. S. Regan
David N. Starr

Patent Dates:
Applied: Jun. 24, 1887
Granted: Sep. 27, 1887

Patent Pictures:
Charles M. Brown patent September 27, 1887
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Description:
The common elements of all the forms are the pivoted lever handles, the movable jaw with ratchet teeth, the spring loaded adjusting pawl, and means to latch the handles in the gripping position.

The patent is cited as relevant prior art in patent no. 2,654,282.

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