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US Patent: 602,381
Plumber's Clamp
Patentees:
Frank White (exact or similar names) - New York, NY
Frank J. Murphy (exact or similar names) - Pomona, CA

USPTO Classifications:
101/385, 269/94, 292/256, 4/649, 409/241

Tool Categories:
work holding : vises

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
M. Deveraux
S. R. Clarke
Ira F. White
Frank W. Wire
Patent Dates:
Applied: May 07, 1897
Granted: Apr. 12, 1898

Patent Pictures: [ 1 | 2 | 3 ]
Patent Fig. 1
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