Combined Educational Chart, Drawing-Board, and Writing-Desk. (open access)

Combined Educational Chart, Drawing-Board, and Writing-Desk.

Patent for "a combined desk and blackboard" (line 68) that includes illustrations.
Date: January 13, 1914
Creator: Henderson, George A.
System: The Portal to Texas History
Land-Breaking Plow (open access)

Land-Breaking Plow

Patent for a plow that also includes rotary drums. The rotary drums carried "sub-soiling and breaking plows; and the object is to provide plows which can be used to break the land to any desirable depth in any kind of soil without turning over the soil."
Date: October 13, 1914
Creator: Reed, Arthur
System: The Portal to Texas History