Breathing apparatus for divers
United States Patent 2839053
Inventors:
Lorenz, Robert L.
Publication Date:
06/17/1958
Assignee:
Lorenz, Robert L.
Other Classes:
137/908, 128/205.240, 128/206.290
International Classes:
B63C11/18; B63C11/22; B63C11/02
Foreign References:
| GB439183A | | | | |
| GB663202A | | | | |
| FR1023404A | | | | |