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US Patent: 90,307
Pipe Tongs
Adjustable Gas-Pipe Tongs
Patentee:
Bernard Riley (exact or similar names) - San Francisco, CA

USPTO Classifications:
81/185.2, 81/386

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Peter Frederick West
George Washington Jones
Patent Dates:
Granted: May 18, 1869

Patent Pictures:
Bernard Riley Pat. May 18, 1869
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Description:
The size adjustment is accomplished by a sliding jaw piece held in place by a sliding gib.

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