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Spring-Clamp.
Patent for a spring clamp "for suspending small articles -- such as towels, dishcloths, and napkins -- and which may also be employed for hanging window-curtains, portières, goods in show-windows, and similar purposes" (lines 7-12)
Date:
January 6, 1903
Creator:
Westbrook, Nancy Z.
System:
The Portal to Texas History
Telephone Signal
Patent for a telephone signals. This inventions is a switchboard drop of the visual signal for magneto system at a central office. Illustration included.
Date:
January 8, 1907
Creator:
Schuessler, Gustavus W.
System:
The Portal to Texas History