Combined Level and Try Square (open access)

Combined Level and Try Square

Patent for a combined level and try square tool. Illustrations are included.
Date: June 18, 1909
Creator: Blackwell, James H.
System: The Portal to Texas History
Sash-Holder. (open access)

Sash-Holder.

Patent for a window sash holder, which is thinner and fits more easily in shallower recesses.
Date: August 18, 1908
Creator: Gabbart, Elihu E.
System: The Portal to Texas History