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US Patent: 159,119
Improvement in wrenches
Brace-wrench
Patentee:
Sylvanus Edward Robinson - Marshfield, WI

USPTO Classifications:
81/171

Tool Categories:
wrenches

Assignees:
None

Manufacturer:
Peter Lowentraut - Newark, NJ

Witnesses:
J. Henry McNeel
D. Babcock
Robert Everett
F. J. Masi

Patent Dates:
Applied: Dec. 05, 1874
Granted: Jan. 26, 1875

Patent Pictures: [ 1 | 2 ]
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Description:
A version of this wrench with a hammer poll and claw, and with a wing-nut handle to turn the adjusting screw was produced. Another example was marked Lowentraut Pat. Jan 26, 1875.

Features combined with a brace-handle in Robinson's Dec. 25, 1877 patent (no. 198,685) for Robinson's Crank Wrench and Bit-Brace.

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