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29 Matching Results
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29
Plate Retaining Device
Patent for a license plate holder for automobiles.
Date:
April 13, 1915
Creator:
Stafford, Frederick
System:
The Portal to Texas History
Retort Vaporizer and Superheater
Patent for improvements for vaporizers "of simple and highly efficient means for thoroughly and effectively superheating the vapor of water and oil" (lines 13-15).
Date:
March 26, 1889
Creator:
Biddison, Stella D.
System:
The Portal to Texas History
Syringe
Patent for a syringe. Illustrations included.
Date:
December 15, 1908
Creator:
Hill, Hiram McClung & Farrington, Charles Oliphint
System:
The Portal to Texas History
Trombone.
Patent, including illustration, for "a musical instrument slide and is more particularly designated as a bearing or stocking for a trombone or other similar instruments in which it is desirable to provide a smooth bearing for the slidable part of the instrument" (page 1, lines 9-13).
Date:
February 17, 1920
Creator:
Ackley, William D.
System:
The Portal to Texas History
Writing-Machine.
Patent for writing-machine mechanism which prolongs the life of the ribbon and provides "means to rotate the platen step by step at each actuation of one or more of the keys" (line 20).
Date:
April 24, 1917
Creator:
Edwards, Alrah B. & Russell, Frank K.
System:
The Portal to Texas History