Device for supplying a free diver with air by means of a compressed-air breathing app
United States Patent 3005453
US Patent References:
/2732840.html
- - 2732840

Breathing apparatus of the rebreather type
- - 2788001


Inventors:
Robert, Wellenstein
Christian, Rackerseder
Publication Date:
10/24/1961
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Assignee:
Robert, Wellenstein
Christian, Rackerseder
Primary Class:
128/204.280
Other Classes:
128/204.290
International Classes:
B63C11/22; B63C11/02
Foreign References:
FR1130272A