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30 Matching Results
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25 - 30 of
30
Price-Tag Holder.
Patent for "an improvement in price tag holders" (lines 9-10) such that the price tag holder is connected to a garment hanger, including one illustration.
Date:
August 30, 1921
Creator:
Newton, Andre Hutt
Object Type:
Patent
System:
The Portal to Texas History
Marine Vessels
Patent for new and useful Improvements in Marine Vessels. Relates to marine vessels used for towing timber.
Date:
January 4, 1921
Creator:
Collier, Hugh R.
Object Type:
Patent
System:
The Portal to Texas History
Hydraulic Swivel.
Patent for a hydraulic swivel valve, to allow water to flow to the drill stem for purposes of cooling and lubrication.
Date:
March 22, 1921
Creator:
Black, Lee J.
Object Type:
Patent
System:
The Portal to Texas History
Grain-Car.
Patent for a grain car, with improved methods or loading and unloading the grain, as well as an easy method for converting the car to haul regular cargo.
Date:
March 15, 1921
Creator:
Dukes, Sandy
Object Type:
Patent
System:
The Portal to Texas History
Templet.
Patent for templets or steel models used in building ships. The steel can be easily shaped into parts.
Date:
May 31, 1921
Creator:
Nies, Gershom John
Object Type:
Patent
System:
The Portal to Texas History
Oil Trap
Patent for improvements to floating oil traps. Floating oil traps are used to catch excess oil floating on top of refinery discharge canals. These improvements include increased flexibility, thus allowing the trap to move with the flow of the water.
Date:
November 22, 1921
Creator:
Jones, Robert P.
Object Type:
Patent
System:
The Portal to Texas History