Resource Type
Counties
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Switch and Signal System
Patent for a switch and signal system to be used for railroad signaling and to prevent trains on different tracks from colliding. (lines 12-22)
Date:
December 12, 1905
Creator:
Adams, Edwin J.
System:
The Portal to Texas History
Harness Fastner
Patent for a harness fastener. Illustration included.
Date:
April 12, 1904
Creator:
Cornitius, Ermst
System:
The Portal to Texas History