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Signal-Light.

Description: Patent for "new and useful improvements in Signal-Lights." (lines 5-6) and "relates to improvements in signaling means." (lines 8-9) including illustrations.
Date: March 16, 1920
Creator: Thomas, Theodore G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Can-Opener.

Description: Patent for new and useful improvements for can openers. The principal purpose is to provide means for opening round cans of different sizes and also square cans.
Date: November 16, 1920
Creator: Adels, Rebecca Valencia.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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