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All Patents in class 172/296
Patents 1 - 2 of 2
Number
Date
Patentee
Title
Type
1,289,462
Dec. 31, 1918
A.P. Hawn
Gang Plow
plows
1,300,392
Apr. 15, 1919
W.H. Higgins, Jr.
Plow Lift
plows
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