1976-04-05
1977-04-12
Blix, Trygve M.
Undertaking
9310D, 115 19, 272 1B, B63H 1600
Patent
active
040168263
ABSTRACT:
Four cylindrical floats with paddles are mounted upon crankshafts having double cranks thereon. The crankshafts are connected by treadle boards. When the treadles are operated by a standing person, the vehicle is propelled forward.
REFERENCES:
patent: 1248013 (1917-11-01), Risso
patent: 1533824 (1925-04-01), Benjamin
patent: 3237589 (1966-03-01), De Biasi
patent: 3318614 (1967-05-01), Lee
patent: 3628491 (1971-12-01), Conrad
patent: 3835494 (1974-09-01), Dougherty
Blix Trygve M.
Coffee Wendell
Goldstein Stuart M.
M. H. Sanders et al.
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