Texas Patents - 4 Matching Results

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Burglar-Alarm.

Description: Patent for a burglar alarm device that is triggered by the movement of a door or window, including illustrations.
Date: October 30, 1917
Creator: Alderman, Joseph S.
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Partner: UNT Libraries Government Documents Department

Silo.

Description: Patent for an improvement of a silo that includes a sliding door, including illustrations.
Date: May 30, 1916
Creator: Barker, Judge F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electric Switch For Street-Railways.

Description: Patent for an electric switch for street railways. This invention allows for the operation of switches of the track from the car, so the operator can turn the switches without stopping the car.
Date: January 30, 1906
Creator: Posey, James A.
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Partner: UNT Libraries Government Documents Department
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