Texas Patents - 4 Matching Results

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Electric-Line-Apparatus Protector

Description: Patent for electric-line-apparatus protector used to protect telephone and other electrical circuits from damaged caused by electricity. This is a simple and efficient device.
Date: July 25, 1916
Creator: Higgins, Peter K. & Parker, Frederick R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Window Sash And Curtain Operating Mechanism

Description: Patent for a window sash and curtain mechanism that works in tandem with electronic security systems. Sash/Curtains can be moved normally, but an alarm can be set to detect when the window itself is tampered with.
Date: October 25, 1917
Creator: Schwarz, Henry W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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