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CA Patent: CA-16,300
Improvements on Monkey Wrenches
Patentee:
Charles H. Miller - Erie, PA

USPTO Classifications:

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

Assignees:
Girard Wrench Manufacturing Company - Girard, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Feb. 15, 1883

Patent Pictures: [ 1 | 2 ]
MILLER'S IMPROVEMENTS ON MONKEY WRENCH from 1883 CANADIAN PATENT RECORD
CIPO Data
Report data errors or omissions
16,300 in Canadian Patents Database
Description:
The patent focuses on the components: one piece handle and jaw, sliding jaw and screw. The drawing shows how the parts are assembled and the bowed sides of the casting straightened afterwards.

The DATAMP entry for the comparable U.S. patent (no. 260,771) shows a slightly different drawing and provides production information.

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