Resource Type
States
15 Matching Results
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1 - 15 of
15
Violin.
Patent for violin with special arrangement of two strings. The two strings produce similar tones when vibrated.
Date:
January 30, 1917
Creator:
Rice, John Henry
System:
The Portal to Texas History
Electric Circuit Breaker
Patent for circuit control apparatus that automatically opens the circuit when conditions are abnormal.
Date:
January 30, 1917
Creator:
Nielssen, Steffen F.
System:
The Portal to Texas History
Gage Cock
Patent for gage cock.
Date:
January 30, 1917
Creator:
Lang, Victor A.
System:
The Portal to Texas History
Locking Mechanism
Patent for locking mechanism, particulalry used in locking liquid dispensing machines.
Date:
January 30, 1917
Creator:
Bradley, Richard C.
System:
The Portal to Texas History
Grate
Patent for grate that are applied to the fire box of a boiler.
Date:
January 30, 1917
Creator:
Brown, Sidney E. & Kain, Harry C.
System:
The Portal to Texas History
Post Hole Digger
Patent for machine that digs holes for posts for construction.
Date:
January 30, 1917
Creator:
Holsomback, Lee N.
System:
The Portal to Texas History
Elevated Drafting Rule
Patent for instrument used in drafting and ruling straight lines.
Date:
January 30, 1917
Creator:
Anderson, Andrew E.
System:
The Portal to Texas History
Soldering Device
Patent for improved automatic soldering device.
Date:
January 30, 1917
Creator:
Bradley, Richard C.
System:
The Portal to Texas History
Automatic Adjustable Feeder Valve
Patent for fluid pressure regulation valves.
Date:
January 30, 1917
Creator:
Hard, Raymond E.
System:
The Portal to Texas History
Windmill
Patent for windmill
Date:
January 30, 1917
Creator:
MacEwen, Benjamin J.
System:
The Portal to Texas History
Road Grader
Patent for road grader, that applies additional support to the frame.
Date:
January 30, 1917
Creator:
Hawley, Royal A.
System:
The Portal to Texas History
Wire Stretcher
Patent for wire stretcher.
Date:
January 30, 1917
Creator:
Clark, Joseph G.
System:
The Portal to Texas History
Vehicle Tire
Patent for non-pneumatic vehicle tires.
Date:
January 30, 1917
Creator:
Fitzharris, Frank
System:
The Portal to Texas History
Cotton Bag Emptier
Patent for a portable derrick, that can be easily lifted and emptied.
Date:
January 30, 1917
Creator:
Brown, Odis A.
System:
The Portal to Texas History
Cotton-Harvester
Patent for a cotton harvester that aides in picking the most difficult part of cotton to pick by hand. Includes instruction and illustrations.
Date:
January 30, 1917
Creator:
Ford, James
System:
The Portal to Texas History