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4 Matching Results
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Combined Clock Speed Regulator And Recorder
Patent for a combined clock-speed regulator and recorder. This object is used for recording and measuring speed in a vehicle.
Date:
April 30, 1918
Creator:
Cook, Charles T.
System:
The Portal to Texas History
Wind-Wheel.
Patent for "new and useful Invention in Wind-Wheels" (lines 5-6), including illustrations.
Date:
April 22, 1902
Creator:
Cannon, Burrell
System:
The Portal to Texas History
Envelop.
Patent for "simple envelop which can be cheaply manufactured and which cannot be fraudulently tampered with or opened for the purpose of removing its contents without mutilating or injuring the envelop to an extent which would be noticable" (lines 9-14), including illustrations.
Date:
April 3, 1917
Creator:
Moore, Essie H.
System:
The Portal to Texas History
Rail-Joint
Patent for an improved rail joint with the ends of the joints fitting together in a more snug, efficient fashion.
Date:
April 15, 1916
Creator:
Ellis, Orvel L.
System:
The Portal to Texas History