Car-Door Mechanism (open access)

Car-Door Mechanism

Patent for a sliding car door mechanism.
Date: November 26, 1912
Creator: Gradick, Wiley Sr.
System: The Portal to Texas History
Grain-Door (open access)

Grain-Door

Patent for a grain car door that keeps the grain securely in the railroad car.
Date: November 26, 1912
Creator: Gradick, Wiley, Sr.
System: The Portal to Texas History