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Improvement in Instruments for Filling Teeth
Patent for improvement in instruments for filling teeth. "The object of this invention is to furnish an improved mode of filling teeth, by the use of which the filling may be built up, hardened, and polished at once, so that the filling will be as hard as marble when the patient leaves the operator's chair, and so that they can be immediately used for masticating."
Date:
February 29, 1876
Creator:
Ludwig, Carl D.
System:
The Portal to Texas History
Vehicle-Wheel
Patent for an improvement to the general construction of the wheel in order to make it easier to assemble and disassemble. The improvement also is intended to make the wheel cheaper and easier to manufacture.
Date:
February 29, 1916
Creator:
Downing, Otto P.
System:
The Portal to Texas History