Patent for "means whereby the beam of a plow may be elevated or depressed at the front end according to the depth to which it is intended that the plow shall run, and held securely at several points of adjustment." (Lines 11-16) Includes instructions and illustrations.
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Titles
Main Title:
Improvement in Plows.
Added Title:
Plows.
Description
Patent for "means whereby the beam of a plow may be elevated or depressed at the front end according to the depth to which it is intended that the plow shall run, and held securely at several points of adjustment." (Lines 11-16) Includes instructions and illustrations.
Physical Description
[1], 1 p. : ill. ; 23 cm.
Notes
Specification forming part of Letters Patent No. 157,006, dated November 17, 1874; application filed July 6, 1874.