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Non-Refillable Bottle.

Description: Patent for a non refillable bottle to prevent sale of other goods than the original in the bottle.
Date: October 29, 1907
Creator: Patterson, Roy J.
Partner: UNT Libraries Government Documents Department

Grading-Machine.

Description: Patent for a grading machine for use in building dikes and levees, which can run over obstacles without harming the machine's work.
Date: October 29, 1907
Creator: Barnett, George W.
Partner: UNT Libraries Government Documents Department

Folding Car-Step.

Description: Patent for folding steps attached to a railway car or trolley, which are easily operated by the conductor and when folded block the exit of the car to prevent passengers leaving or entering without the steps.
Date: October 29, 1907
Creator: Felkner, William G.
Partner: UNT Libraries Government Documents Department
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