Rotary Hand-Stamp. (open access)

Rotary Hand-Stamp.

Patent for a rotary hand stamp that has an interchangeable printing surface that is simple, convenient, and is especially created for rapid operation.
Date: March 19, 1912
Creator: Walshe, Denny Edmund
System: The Portal to Texas History
Cotton-Thinning Machine (open access)

Cotton-Thinning Machine

Patent for a cotton thinning machine. Illustrations included.
Date: July 12, 1912
Creator: Brawner, William Jefferson
System: The Portal to Texas History
Cotton-Chopper (open access)

Cotton-Chopper

Patent for a cotton chopper that attaches to a cultivator.
Date: November 26, 1912
Creator: Parsley, Samuel E.
System: The Portal to Texas History