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US Patent: 140,747
Improvement in joiners' clamps
Patentee:
Edward A. Walker (exact or similar names) - New Haven, CT

USPTO Classifications:
269/215, 269/249

Tool Categories:
work holding : clamps

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A. J. Tibbits
J. C. Earle
Patent Dates:
Applied: Mar. 26, 1873
Granted: Jul. 08, 1873

Patent Pictures:
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