X Patent X4973
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X49731828-01-25X0004973.pdf(12) United States Patent (10) Patent No.: X4973 Beard (45) Date of Patent: Jan. 25, 1828 (54) WATER WHEEL, SCREW (76) Inventor: Ebenezer Beard United States Patent P t t N X4973 3 en 0.: I, _. . 1 4 ./K/Ki/1-2! .Z' P. " \' V 2.6 {(4 LJ c./c-A3.-/4/rc& 74 .4 {a 44., //oec&;z&=.a -73:ra4..