Access
States
Counties
Language
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Adding-Machine
Patent for improvements to adding machines, which is key-operated and includes a vertically disposed shaft and a means to actuate the sliding plate.
Date:
January 5, 1915
Creator:
Gatewood, William F.
System:
The Portal to Texas History
Measuring and Proportioning Machine.
Patent for "a device by which the mixing of various ingredients in certain desired proportions may be easily and accurately accomplished" (lines 8-11). It is meant for industrial measuring.
Date:
May 5, 1896
Creator:
Collins, Alonzo G.
System:
The Portal to Texas History