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Book or Music Leaf Turner.
Patent for a music page turner, which can be operated by a lever or foot pedal.
Date:
October 22, 1907
Creator:
Alrich, Henry
System:
The Portal to Texas History
Condenser.
Patent for a condenser for a hot water heater for use in homes.
Date:
October 8, 1907
Creator:
Nenninger, Oscar Alfred
System:
The Portal to Texas History