Underwater viewers
United States Patent 2911878
US Patent References:
/0804996.html
- - 0804996

Submarine telescope
- - 1515065

Underwater inspection and photographing device
- - 2404556


Inventors:
Vernier, George E.
Publication Date:
11/10/1959
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Assignee:
Vernier, George E.
Primary Class:
359/895
International Classes:
G02B23/22; G02B23/16
Foreign References:
FR971182A