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US Patent: 416,500
Pipe Wrench
Patentee:
Richard J. Robbins - Suspension Bridge, NY

USPTO Classifications:
30/190, 81/382, 81/383, 81/408, 81/413

Tool Categories:
wrenches : pipe wrenches

Assignees:
Cornelius W. Graham - Buffalo, NY
Edward T. Smith - Buffalo, NY

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

Witnesses:
Jno. J. Bonner
F. C. Geyer
Chas. J. Buchheit
Emil Neuhart

Patent Dates:
Applied: Jul. 17, 1889
Granted: Dec. 03, 1889

Patent Pictures: [ 1 | 2 ]
Richard J. Robbins patent December 3, 1889
USPTO pdf tiff
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GRAHAM PATENT VISE WRENCH (FLICKR)
Description:
Suspension Bridge, NY is now the northern part of Niagara Falls, NY. Made in 14", 22", 36" & 48" lengths to fit pipe from 1/2" to 6".

An 1890 advertisement (see 2nd image) lists the maker as Graham, Bailey & Co., and announcements in 1890 AGE OF STEEL note Graham, Bailey & Co. succeeded the Graham Vise Wrench Co. Known examples have markings reflecting both makers.

CA-33192 and GB-188919421 are corresponding Canadian and British patents, respectively.

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