Resource Type
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Telegraph-Transmitter.
Patent for an improvement to telegraph transmitters of the pendulum type in which signals are transmitted through use of a series of dots and dashes.
Date:
June 2, 1914
Creator:
Moore, Leo I.
System:
The Portal to Texas History
Flue-Cleaner.
Patent for a cleaner for a chimney, that is composed of multiple parts and is adjustable.
Date:
June 28, 1892
Creator:
Pharr, Walter
System:
The Portal to Texas History