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in subjects: "Science and Technology - Tools"  
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Internal Combusion System

Description: Patent for new and useful Internal-Combustion Engine. Improves the provision of an engine which the cylinder is provided with a semi-spherical upper end, fr the rotatable reception of similar shaped power cylinder carrying shell. Specification of letter patent with illustration. Serial number 789.146
Date: May 12, 1914
Creator: Clough, George G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Straightening-Machine

Description: Patent for an improved straightening machine to "straighten pipes, rails, and allied structures in an expeditious manner."
Date: May 12, 1914
Creator: Boykin, Burwell, Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow-Facing

Description: Patent for an improvement on the coating and plastic facing of the mold boards and shovels on a plow.
Date: May 12, 1914
Creator: Martin, William A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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