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Improvement in Mixing Mineral and Fossil Substances with Bituminized Clay to Form a Plastic Material.
Reissued patent for a chemical process to create a plastic material made of bitumen, clay, and mineral and/or fossil substances.
Date:
September 26, 1876
Creator:
Lea, Pryor
System:
The Portal to Texas History
Improvement in Animal-Traps.
Patent for improvement in animal-traps, with description and illustrations.
Date:
December 26, 1876
Creator:
Anderson, Zachariah J.
System:
The Portal to Texas History
Improvement in Plows.
Patent for an improvement in plows which will allow for adjustments in width.
Date:
June 26, 1876
Creator:
Traweek, Robert C.
System:
The Portal to Texas History