Texas Patents - 2 Matching Results

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Dynamo Electric Machine

Description: Patent for Improvement of Dynamo-Electric Machines. The improvement turns electric energy into mechanical entry.
Date: August 10, 1920
Creator: Reynolds, William T. & Reynolds, Bruce A.
Partner: UNT Libraries Government Documents Department

Tool Joint.

Description: Patent for a screw-threaded tool joint used for drill pipes on rotary drilling rigs.
Date: August 10, 1920
Creator: Lyle, Henry Claude
Partner: UNT Libraries Government Documents Department
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