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in subjects: "retainers"  
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Index and Trial-Balance.

Description: Patent for improvement in indexes and trial-balances by using removable spring-strips to hold all the papers together in one place and can be easily remove when needed. Illustration is included.
Date: April 2, 1901
Creator: Templeton, Allison
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Thill-Coupling.

Description: 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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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