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CA Patent: CA-2,923
Pipe Tongs
Patentee:
James R. Brown - Cambridge, MA

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
Hazen P. Huntoon - Cambridge, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Dec. 19, 1873

Patent Pictures:
Hazen P. Huntoon (assignee of James R. Brown) edited from CANADIAN PATENT OFFICE RECORD
CIPO Data
Report data errors or omissions
Canadian patent no. 2,923 in FLICKR
2,923 in Canadian Patents Database
Description:
The summary in the Canadian Patent Office Record describes a version of Brown's pipe tongs in which the adjusting thumb screw retains a fixed position in relation the the handle.

Corresponding U.S. patent no. 144,253 was issued to James R. Brown on November 4, 1873. The full patent (like corresponding British patent GB-187303762) folds in other alternatives which received separate U.S. patents (i.e. 142,143 and 145,929).

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