Marine propulsion – Oscillating propelling means
Patent
1978-07-31
1980-07-29
Blix, Trygve M.
Marine propulsion
Oscillating propelling means
440 22, B63H 130, B63H 500
Patent
active
042145473
ABSTRACT:
An amusement device comprising a boat, for a rider, which is formed of lightweight material, and permits the rider to stand on the boat much like on a surf board and by rolling the boat about its longitudinal axis causing provided fins to flex and form propulsion apparatus for the boat.
REFERENCES:
patent: 2195527 (1940-04-01), Whiting
patent: 3236203 (1966-02-01), Bramson
patent: 3254622 (1966-06-01), Bramson
patent: 3256850 (1966-06-01), Bramson
patent: 3358636 (1967-12-01), Curtiss
patent: 3640240 (1972-02-01), Stein
patent: 3722015 (1973-03-01), Miller
patent: 3773011 (1973-11-01), Gronier
patent: 3845733 (1974-11-01), Jackman
Flipper Craft Brochure-for date, note spec., p. 1, lines 27+.
Blix Trygve M.
Keen D. W.
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