Resource Type
Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Constant-Volume Valve.
Patent for an improved constant-volume valve that helps regulate the flow of liquid through a passage with an automatic valve.
Date:
February 28, 1922
Creator:
Dewey, Maurice J.
System:
The Portal to Texas History
Shock Absorber
Patent for a new and improved shock absorber which is "primarily intended for use as a connecting and cushioning medium between the upper and lower springs commonly employed under automobile bodies" (lines 12-15), including illustrations.
Date:
November 28, 1922
Creator:
von Roeder, Benno Gilbert & Oates, Eugene Caroway
System:
The Portal to Texas History