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US Patent: 4,292
Plow-Clevis
Improvement in Plow-Clevises
Patentee:
Patrick Gallagher - Chambersburg, PA

USPTO Classifications:
278/96.2

Tool Categories:
wrenches : auxiliary wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Wm. P. Elliott
Edmund Maher

Patent Dates:
Granted: Nov. 26, 1845

Patent Pictures:
Patrick Gallagher patent November 26, 1845
USPTO pdf tiff
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Description:
Clevis with screw-adjusting draft adjustment, and two wrench-headed pins.

The patent is noted in discussion of patent applications for wrench-headed clevis pins that appears on pg. 674 of the Dec. 17, 1872 PATENT GAZETTE.

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