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Electric Light Switch.
Patent for an improved electric switch that is used to energize electric lights for various purposes and for use in connection with a signaling system. This switch will permit the energization of any one of the lights separately or all lights simultaneously.
Date:
April 6, 1920
Creator:
Riggs, Fletcher S.
System:
The Portal to Texas History
Window-Screen.
Patent for improvements in screen constructions in connection with doors or windows. The goal is to provide a means for encouraging insects that are on the inner surfaces of the screen.
Date:
January 20, 1920
Creator:
McGeorge, Jefferson F.
System:
The Portal to Texas History