6 Matching Results

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Filter.

Description: Patent for an improvement in filters to remove impurities from gasoline and oil and to reuse the gasoline and oil. Includes illustrations.
Date: February 4, 1919
Creator: Northrup, Early
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Impression Cake

Description: Patent for a new type of impression cake meant for the creation of dental and other kinds of molds.
Date: May 13, 1919
Creator: Downie, James H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Clutch.

Description: Patent for "the principal object of this invention to provide a compact and efficient friction clutch for transmitting power from a single driving member to a plurality of individual driven mechanisms" (lines 11-15), including illustrations.
Date: February 4, 1919
Creator: Taft, John A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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