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3 Matching Results
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Railroad-Tie.
Patent for a new railroad tie constructed of concrete material with detachable internal reinforcements used to support the rail fastening system, with illustrations.
Date:
March 31, 1914
Creator:
Baca, August
System:
The Portal to Texas History
Portable Furnace
Patent for a portable furnace to be used with pots and kettles. Illustrations included.
Date:
December 31, 1907
Creator:
Ruhmann, Gustave E.
System:
The Portal to Texas History
Improvement in Frames for Cultivators, Scrapers, & c.
Patent for “a new and useful improvement in Combined, Cultivator, Scraper, and Dumping-Cart” (lines 4-7) including illustration.
Date:
March 31, 1874
Creator:
Rabb, John Wesley
System:
The Portal to Texas History