Resource Type
Counties
4 Matching Results
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4
Automatic Oiler
Patent for an automatic oiler for railroad cars.
Date:
January 17, 1911
Creator:
Adams, Richard Field
System:
The Portal to Texas History
Automatic Switch
Patent for an automatic switch for railroad tracks.
Date:
May 2, 1911
Creator:
Pickle, Voyl C.
System:
The Portal to Texas History
Walking Cultivator
Patent for a walking cultivator. Illustrations included.
Date:
May 30, 1911
Creator:
Roper, Andrew Washington
System:
The Portal to Texas History
Metal Tie.
Patent for a metal railroad tie.
Date:
May 2, 1911
Creator:
Riley, Samuel L.
System:
The Portal to Texas History