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Thill-Coupling.
Patent for improvements in thill-couplings by using a combination of forward extension arms, having each near its forward end, circular shoulders, adapted to engage the ends of the shaft-iron; the spring-catch for holding the lever arm in locking position and, for retracting arm when the catch is released. Illustration is included.
Date:
March 17, 1891
Creator:
Bryan, William L.
System:
The Portal to Texas History