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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.
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