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Interlocking Tile.

Description: Patent for interlocking tiles that obviate a continuous transverse mortar joint so that all liability of moisture passing through the wall is eliminated and a more substantial wall built.
Date: October 2, 1917
Creator: Waddell, Clarence W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trace-Lock.

Description: Patent for a trace lock that is mechanized to work vertically or horizontally. Illustration included.
Date: October 2, 1900
Creator: Halstead, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Convertible Mixing and Cleaning Machine

Description: Patent for Convertible Mixing and Cleaning Machine offers information about the significance of mixing ingredient benefits. The mixing and cleaning machine ease the process for everyday living.
Date: October 2, 1906
Creator: Stacy, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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