Collection
States
Counties
Decade
Month
3 Matching Results
Results open in a new window/tab.
Results:
1 - 3 of
3
Doll Novelty.
Patent for a new device, which is a rounded, weighted base placed in a doll that allows the doll to raise itself when turned over on any side without external assistance by lowering the doll's center of gravity. Descriptions of materials used and illustrations are included..
Date:
November 4, 1902
Creator:
Flint, William G.
System:
The Portal to Texas History
Cultivator.
Patent for a cultivator with spring teeth that are stronger than ordinary cultivator teeth.
Date:
December 8, 1908
Creator:
Baker, Alonzo L. & Baker, Russell
System:
The Portal to Texas History
Apparatus for Transmitting Sound-Waves
Patent for transmitting sound waves by magnetic induction and to "furnish an apparatus by which these different vibrations can be heard at the receiving end" (lines 20-22). Includes descriptions and illustrations.
Date:
October 17, 1911
Creator:
Harvey, Fred Brown
System:
The Portal to Texas History