Crank-Axle Adjustment.
Description:
Patent for a crank axle adjustment "to simplify and produce and efficient crank axle that will efficiently perform its function in connection with the general structure of a plow or cultivator." (lines 13-17)
Date:
June 15, 1920
Creator:
Kopplin, Otto E.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department