WATER-COLUMN OPTICS SYSTEM
United States Patent 3482903

Inventors:
Thomas, John F.
Keller, Karl H.
Publication Date:
12/09/1969
View Patent Images:
Download PDF 3482903 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Navy US.
Primary Class:
359/895
Other Classes:
210/340, 396/28, 405/185, 210/333.100, 210/264, 396/26
International Classes:
G02B23/22; G02B23/16; G02F3/00; G03B19/00; B01D15/00
US Patent References:
2939416Diverless ship salvage apparatus
3014984Underwater television device
3056499Filtration of liquids
3286087Device for illumination
3354658Apparatus for performing underwater operations
Foreign References:
DE1103172B




<- Previous Patent (MODIFIED SYMMETRICAL...)   |   Next Patent (METHOD AND APPARATUS...) ->