Resource Type
6 Matching Results
Results open in a new window/tab.
Results:
1 - 6 of
6
Automatic Railway-Switch Operating Mechanism
Patent for an automatic railway switch operating mechanism with improved levers and controls.
Date:
August 8, 1911
Creator:
Hoffmann, Laniel F.
System:
The Portal to Texas History
Wheel-Holding Device.
Patent for a device to hold a wheel during construction and repair.
Date:
August 8, 1911
Creator:
Gallagher, Harve H.
System:
The Portal to Texas History
Vending Machine
Patent for improvements in vending machines.
Date:
August 8, 1911
Creator:
Linck, George E.
System:
The Portal to Texas History
Film Developing, Fixing, and Washing Apparatus.
Patent for a film developing, fixing, and washing tank.
Date:
August 8, 1911
Creator:
Nyč, Frederick Francis
System:
The Portal to Texas History
Evaporator Cooler.
Patent for an evaporator cooler.
Date:
August 8, 1911
Creator:
Tyson, William David & Tyson, Thomas Oscar
System:
The Portal to Texas History
Cotton-Chopping Machine
Patent for a cotton chopping machine. Illustrations included.
Date:
August 8, 1911
Creator:
Lynn, Walter Hugh
System:
The Portal to Texas History