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Bottle.

Description: Patent for a bottle that has a mechanism near its opening, and when the cork is pulled out, it becomes impossible to refill the bottle and use it again. The point of this bottle is so that after it has been sealed, it cannot be opened and emptied without apparent evidence that it has been opened.
Date: May 4, 1897
Creator: Phillips, George C.
Partner: UNT Libraries Government Documents Department

Railway - Switch.

Description: Patent for a new and improvement in automatic safety railway-switches to "enable the motorman or conductor to conveniently and accurately insure the proper setting of the switch without leaving this position" (line 16 - 19).
Date: December 28, 1897
Creator: Girardeau, St. Julien & Murray, Richard James
Partner: UNT Libraries Government Documents Department

Composition of Matter for Manufacturing Calcium Carbid.

Description: Patent for a "new and useful Composition of Matter for Manufacturing Calcium Carbid" (lines 5-7) that will aid in the commercially successful production. Patent includes specifications for the composition of matter.
Date: September 7, 1897
Creator: Blum, Sylvain
Partner: UNT Libraries Government Documents Department
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