Country
Counties
Decade
Month
Day
4 Matching Results
Results open in a new window/tab.
Results:
1 - 4 of
4
Word Counting Attachment for Type Writers
Patent for a word counting attachment for type writers.
Date:
August 4, 1903
Creator:
Coleman, James G. & Wilhite, Luther
System:
The Portal to Texas History
Distribution And Information Board
Patent for a distribution and information boards. This invention is intended to as a graphic reference chart for railway systems. Illustrations included.
Date:
October 4, 1904
Creator:
Symons, Wilson E.
System:
The Portal to Texas History
Spring Wheel
Patent for a spring wheel to "provide an improved resilient wheel wherein spring members are interposed between the hub and rim maintaining them in yielding rotation" (lines 9-15).
Date:
May 4, 1915
Creator:
Corwin, Lawrence O. & Arnold, Wiley Moses
System:
The Portal to Texas History
Process for the Conversion of Liquids, Fluids, and Oils
Patent for a process for the conversion of liquids, fluids, and oils that converts these fluids into more buoyant products with lower specific gravities and boiling points. This process seeks to meet demand for engine fuels, gasoline, and oils, and augment the diminishing supply of these natural products.
Date:
November 4, 1919
Creator:
Adams, Joseph H.
System:
The Portal to Texas History