Air-Gun (open access)

Air-Gun

Patent for an air gun. Illustrations included.
Date: June 21, 1910
Creator: Heckman, George E.
System: The Portal to Texas History
Cultivator Foot. (open access)

Cultivator Foot.

Patent for a cultivator foot that allows shovels or sweep blades to be quickly attached to it or detached from it.
Date: June 1, 1915
Creator: Vance, Caughey C.
System: The Portal to Texas History