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Automatic Trough-Valve.
Patent for improvements in animal watering troughs that has an automatic float control valve in connection with the trough.
Date:
July 20, 1920
Creator:
Striegler, Fritz
Object Type:
Patent
System:
The Portal to Texas History
Occurrence, Availability, and Chemical Quality of Ground Water in the Edwards Plateau Region of Texas
Report on
Date:
July 1979
Creator:
Walker, Loyd E.
Object Type:
Report
System:
The Portal to Texas History