Locking Device (open access)

Locking Device

Patent for a "locking device for coin controlled receptacles" (lines 11-13)
Date: February 6, 1912
Creator: Boone, Wallie R. & Watson, Chester A.
System: The Portal to Texas History
Harrow Attachment. (open access)

Harrow Attachment.

Patent for an improved attachment for cultivators used in farming.
Date: January 6, 1914
Creator: Jones, James W. & Tucker, George H.
System: The Portal to Texas History
Cleaner For Firearm-Barrels. (open access)

Cleaner For Firearm-Barrels.

Patent for a cleaner for firearm barrels that is small enough to be carried in a pocket. "May be used for cleaning firearms of the repeating type."
Date: May 6, 1913
Creator: P'Pool, Matthew Wall
System: The Portal to Texas History
Cotton-Picking Machine (open access)

Cotton-Picking Machine

Patent for a cotton picking machine. An improvement on the cotton picking machine that uses a pair of picking drums with attached picking fingers.
Date: April 6, 1915
Creator: Pruser, Gustav A.
System: The Portal to Texas History