Resource Type
Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Oil Pump
Patent for an oil pump that may be attached to a barrel or container and dispense liquid in predetermined quantities.
Date:
May 31, 1921
Creator:
Hughes, Stanley R.
System:
The Portal to Texas History
Mold for Tubular Articles.
Patent for an improved mold for making concrete tubular casings for dug wells with opposite grooves so the casings can be connected together when used, with illustrations.
Date:
May 8, 1917
Creator:
Schuettig, Emil A.
System:
The Portal to Texas History