Train-Stopping Apparatus (open access)

Train-Stopping Apparatus

Patent for the improvement of train stopping apparatuses, includes illustration.
Date: December 7, 1915
Creator: Bock, Victor E.
System: The Portal to Texas History
Thermostatic Fire-Extinguishing Device (open access)

Thermostatic Fire-Extinguishing Device

Patent for a thermostatic fire-extinguishing device that improves the efficiency and operation of thermostatic fire-extinguishers.
Date: June 22, 1915
Creator: Hooks, J. J.
System: The Portal to Texas History