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CA Patent: CA-33,192
Pipe Wrench
Patentees:
Richard  James Robbins (exact or similar names) - Suspension Bridge, NY
Cornelius W. Graham (exact or similar names) - Buffalo, NY
Edward T. Smith (exact or similar names) - Buffalo, NY

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Graham Vise Wrench Co. - Buffalo, NY
Graham, Bailey & Co. - Buffalo, NY

Witnesses:
Emil J. Neuhart
Chas. J. Buchheit

Patent Dates:
Applied: Nov. 02, 1889
Granted: Dec. 19, 1889

Patent Pictures: [ 1 | 2 ]
Richard J. Robbins patent Dec. 19, 1889 - edited from Canadian Patents Database
CIPO Data
Report data errors or omissions to steward Stan Schulz
Description:
Compound leverage tongs type wrench.

Produced by Graham Vise Wrench Co. and successor company Graham, Bailey & Co. of Buffalo, NY.

Parallel U.S. patent no. 416,500 was granted Dec. 3, 1889, and British patent GB-188919421 was registered Dec. 3, 1889.

Graham and Smith are assignees in the U.S. patent and listed in the British patent as well. See the DATAMP entry for the U.S. patent to see a humorous Aug. 1890 ad for the wrench.

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