Resource Type

Duplex Menu. (open access)

Duplex Menu.

Patent for new and useful improvements in duplex menus, including instructions and illustrations.
Date: September 12, 1899
Creator: Billow, Sherman
System: The Portal to Texas History
Apparatus for Separating Wax from Plants (open access)

Apparatus for Separating Wax from Plants

Patent for an apparatus for separating the wax from plants. Illustrations included.
Date: September 12, 1911
Creator: Hill, Conrad
System: The Portal to Texas History