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Improvement in Washing-Machines.
Patent for "washing-machines known as self-regulating machines; and consists in the arrangement for controlling at will the amount of pressure to be used, in combination with the construction of the feed and washing rollers." (Lines 11-15) Includes instructions and illustrations.
Date:
July 1, 1873
Creator:
Rowland, William M.
System:
The Portal to Texas History