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Acetylene-Gas Generator.
Patent for certain new an useful improvements in acetylene gas apparatus, including instructions and illustrations.
Date:
January 30, 1900
Creator:
Ruthenberg, William
System:
The Portal to Texas History
Low-Pressure Alarm and Indicator for Air-Brakes.
Patent for "air-brake mechanisms in general, and more particularly to the alarms for giving warning when the pressure in the train-pipe drops to a predetermined point and for giving a visual signal when such condition exists" (p. 1, lines 8-13).
Date:
October 25, 1900
Creator:
Parsons, Avery H.
System:
The Portal to Texas History
Plow-Stock.
Patent for certain new and useful improvements in plow stocks, including instructions and illustrations.
Date:
March 6, 1900
Creator:
Fillip, Joseph W.
System:
The Portal to Texas History