Resource Type

States

Guard. (open access)

Guard.

Patent for a guard for marine vessels against torpedoes.
Date: September 21, 1920
Creator: Muncy, David J.
System: The Portal to Texas History
Door-Locking Device (open access)

Door-Locking Device

Patent for Door-Locking Device
Date: November 21, 1916
Creator: Newcome, Robert B.
System: The Portal to Texas History