2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Cell Tester
Patent for a portable device that can test battery cells to determine if they are outputting the normal current, of if voltage has dropped.
Date:
October 24, 1916
Creator:
Luthy, Joseph O.
System:
The Portal to Texas History
Scoop
Patent for a self adjusting scoop, that can be used to measure quantities of items such as grain, and contains the component of a self leveler for accuracy.
Date:
October 24, 1916
Creator:
Read, William W.
System:
The Portal to Texas History