States
Counties
3 Matching Results
Results open in a new window/tab.
Results:
1 - 3 of
3
Water-Wheel.
Patent for a water wheel for creating power, which has a greater power producing capacity with less water required than usual through the use of a special type of bucket on the wheel.
Date:
November 23, 1909
Creator:
Dennis, Decatur D.
System:
The Portal to Texas History
Rail Connection.
Patent for a rail connection, which is smooth when the train passes over it and durable.
Date:
June 8, 1909
Creator:
Hendricks, Willis A.
System:
The Portal to Texas History
Calculator
Patent for a calculator which consists of semicircular device with movable pointers and number indexes printed on it that allows the pointers to be moved to different numbers to produce the answer to a math problem such as calculating the cost of goods sold by the pound in a store.
Date:
December 21, 1909
Creator:
Goss, George Wilson
System:
The Portal to Texas History