Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Transmission Gear Shifting Device.
Patent for a new transmission gear shifting device will "provide means for shifting the transmission parts of an automobile or other motor driven vehicle, without employing the usual hand levers and appliances, and to do so by means of electrically controlled operating mechanisms in combination with certain component parts." (Lines 12-18) including illustrations.
Date:
January 5, 1915
Creator:
De Witt, G.
System:
The Portal to Texas History
Thermostat.
Patent for an improved and automatic thermostat tool to regulate temperature including instructions and illustrations.
Date:
December 28, 1915
Creator:
Royall, John H.
System:
The Portal to Texas History