Resource Type

Month

Hoisting Apparatus. (open access)

Hoisting Apparatus.

Patent for a hoisting apparatus for use in cranes.
Date: March 21, 1911
Creator: Fischer, Fritz, Jr.
System: The Portal to Texas History
Trap (open access)

Trap

Patent for a trap for catching rats. Illustrations included.
Date: March 21, 1911
Creator: Clark, William Joseph
System: The Portal to Texas History