Resource Type
Counties
Day
1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Auto-Lock
Patent for an invention of a valve locking device by which the fuel supply pipe can be cut off and a valve which is inserted in the said pipe locked in the cut off position.
Date:
July 15, 1919
Creator:
Melton, William C.
System:
The Portal to Texas History