Toy breathing apparatus for swimmers
United States Patent 2931057
US Patent References:
Swimmer's float
- - 1446222
Swimmer's appliance
- - 1727202
Expanded cellular plastic flotation body
- - 2660194
Mask for learning to swim above and under water
- - 2780224
Transfer mask
- - 2818066
Swimmer's float
- - 1446222
Swimmer's appliance
- - 1727202
Expanded cellular plastic flotation body
- - 2660194
Mask for learning to swim above and under water
- - 2780224
Transfer mask
- - 2818066
Inventors:
Pierre, Vilarem Francois
Publication Date:
04/05/1960
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Assignee:
Pierre, Vilarem Francois
Primary Class:
Other Classes:
441/136
International Classes:
B63C11/20; B63C11/02
US Patent References:
| 2823670 | Underwater breathing apparatus |