Resource Type

Automobile Torpedo (open access)

Automobile Torpedo

Patent for a shell torpedo launcher for submarines.
Date: December 20, 1910
Creator: Douglas, William M.
System: The Portal to Texas History
Cistern-Cover. (open access)

Cistern-Cover.

Patent for a cistern cover that is easily taken on and off.
Date: December 20, 1910
Creator: Hewitt, James E.
System: The Portal to Texas History