Collection
Counties
Language
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Pump Controlling Means
Patent for a pump controlling means. This invention applies even pressures on the discharge line. Illustration included.
Date:
August 23, 1904
Creator:
Small, William
System:
The Portal to Texas History
Pump-Jack
Patent for a pump jack for operating the oil well pump rods.
Date:
April 23, 1912
Creator:
Seybert, Guy W.
System:
The Portal to Texas History