Resource Type
Counties
3 Matching Results
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Couch
Patent for a couch. Illustration included.
Date:
April 4, 1905
Creator:
Hartshorn, Guy C.
System:
The Portal to Texas History
Electric Time-Alarm and Annunciator
Patent for "a combined call and annunciator system by which any number of signals can be sent automatically or manually and various signals received through the annunciator, the apparatus serving to send signals to or from any number of distant points on the circuit at any time" (lines 17-23).
Date:
April 4, 1890
Creator:
Suren, Nathan H.
System:
The Portal to Texas History
Railway Switch
Patent for a railway switch. Illustrations included.
Date:
April 4, 1911
Creator:
Sydnor, Leslie A.
System:
The Portal to Texas History