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Pyrotechnic Device.

Description: Patent for a firework called a crazy cracker, which prevents accidental ignition from friction by covering the firework in a wood pulp covering.
Date: November 3, 1908
Creator: Graber, Charles F.
Partner: UNT Libraries Government Documents Department

Opera-Chair.

Description: Patent for opera chairs that can be used in audience halls. It is mentioned as seats that are rotatable with foldable arms providing enough space for the exit.
Date: November 25, 1902
Creator: Wilkinson, John A.
Partner: UNT Libraries Government Documents Department
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