Resource Type
Counties
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Burglar-Alarm
Patent for improvements in burglar alarms, with horns and sirens.
Date:
March 8, 1921
Creator:
Sefcik, Francis
System:
The Portal to Texas History
Ensilage-Packer for Silos.
Patent for a device in "which the center and edges" of a silo "will be packed with equal firmness and solidity" (lines 14-16) of materials, including an illustration and description of the device.
Date:
March 23, 1920
Creator:
Comer, John H.
System:
The Portal to Texas History