Spoon-shaped swim-fin
United States Patent 3019458
US Patent References:
/RE23006.html
- - RE23006

/1066696.html
- - 1066696

Swimming device
- - 2159972

Swimming device
- - 2290943

Swimming appliance
- - 2313979


Inventors:
Barbieri, Ettore DE.
Fernando, Gatti
Publication Date:
02/06/1962
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Assignee:
Barbieri, Ettore DE.
Fernando, Gatti
Primary Class:
441/64
International Classes:
A63B31/11; A63B31/00
US Patent References:
2672629Swimmer's propulsion aid
2729832Swimming fin
2737668Fins for swimmers
2889563Swim flipper
Foreign References:
GB762166A