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US Patent: 14,424
Wrench
Patentee:
Erastus Tracy (exact or similar names) - Troy, NY

USPTO Classifications:
137/906, 81/129.5, 81/97

Tool Categories:
wrenches : nut wrenches
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. Bell
Jesse Moore

Patent Dates:
Granted: Mar. 11, 1856

Patent Pictures:
Erastus Tracy patent March 11, 1856
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Description:
Quick-adjust nut wrench. The upper portion of the sliding jaw has a coil spring bearing on the front face of the main bar. The lower portion of the sliding jaw has teeth engaging a rack on the front face of the main bar.

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