Self Locking Rail Chair. (open access)

Self Locking Rail Chair.

Patent for self locking rail chair. This chair can be easily added to older rail lines for passengers' comfort.
Date: January 26, 1915
Creator: Liebmann, August G.
System: The Portal to Texas History
Desulfurizing Lima or Analogous Petroleum and Related Oils (open access)

Desulfurizing Lima or Analogous Petroleum and Related Oils

Patent for an oil distillate to desulfurize petroleum found in Lima, Ohio. Illustrations included.
Date: January 26, 1909
Creator: Robinson, Clarence I.
System: The Portal to Texas History