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4 Matching Results
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Storage Battery.
Illustration of a storage battery for patent.
Date:
February 22, 1916
Creator:
East, James W.
System:
The Portal to Texas History
Finish-Remover.
Patent for specifications of a finish-remover made with paraffin wax and other materials.
Date:
February 22, 1916
Creator:
Ellis, Carleton
System:
The Portal to Texas History
Preserved Wood and Process of Making Same.
Patent for a method of injecting preservative materials, in a manner that will reduce the cost of the treatment without greatly reducing the preservative action.
Date:
March 19, 1912
Creator:
Ellis, Carleton
System:
The Portal to Texas History
Preserved Wood and Process of Making Same
Patent for a process for preserving wood by treating it with various anti-septic chemicals mixed with oil that stops the wood from decaying for a long time.
Date:
November 19, 1912
Creator:
Ellis, Carleton
System:
The Portal to Texas History