Texas Patents - 101 Matching Results

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Indicator

Description: Patent for a numbering indicator used to mark the status of stored batteries.
Date: May 29, 1919
Creator: Carter, James William, Jr.
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Partner: UNT Libraries Government Documents Department

Ice-Machine

Description: Patent for an icebox that can be combined with a refrigerator. The icebox will spray the ammonia compressor coil with water, as well as inducing a forced circulation of water in the icebox's freezing tank.
Date: May 22, 1920
Creator: Grant, Willburn C.
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Partner: UNT Libraries Government Documents Department

Mousetrap

Description: Patent for a mousetrap that is an improvement to the average mousetrap, but new in the sense that it can be made in various proportions or sizes for a variety of vermin.
Date: January 24, 1922
Creator: Spencer, Clarence E.
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Partner: UNT Libraries Government Documents Department
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