Title:
DIVER'S JACKET AND BUOYANCY CONTROL DEVICE
United States Patent 3436777

Inventors:
Greenwood, Alden T.
Publication Date:
04/08/1969
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Assignee:
Alden, Greenwood T.
Primary Class:
405/186
Other Classes:
137/102, 128/202.140, 441/108, 441/96
International Classes:
B63C11/30; B63C11/02; B63C9/16; B63C9/18; B63C11/18
US Patent References:
2989971Tripper valve
3070112Automatic control valve for use in connection with the raising of sunken bodies
3192723Diving weight




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