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CA Patent: CA-52,970
Pipe Tongs
Patentees:
John McCarthy Palmer - Marysville, MT
William F. Trites - Marysville, MT

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Gustave A. Uhrig
William F. Trites
H. A. James
C. H. Raeder

Patent Dates:
Applied: May 30, 1896
Granted: Jul. 20, 1896

Patent Pictures:
John M. Palmer and W. F. Trites patent July 20, 1896 edited from CANADIAN PATENT OFFICE RECORD
CIPO Data
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Canadian patent no. 52,970 in FLICKR
52,970 in Canadian Patents Database
Description:
Size adjustment accomplished by an adjusting nut within a pivoting block. The shank of the movable jaw is threaded.

Corresponding U.S. patent no. 561,274 was issued June 2, 1896 to John M. Palmer.

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