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US Patent: 15,427
Improved Clamp for Plumbers
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Patentee:
F. R. Langwith (exact or similar names) - New York, NY

USPTO Classifications:
222/383.1, 269/45

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. A. Durgin
Lawson A. Long
Patent Dates:
Granted: Jul. 29, 1856

Patent Pictures:
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