US PATENT SUBCLASS 359 / 895
.~ Submerged object viewer

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

894  DF  OPTICAL APERTURE OR TUBE, OR TRANSPARENT CLOSURE {1}
895.~ Submerged object viewer

DEFINITION

Classification: 359/895

Submerged object viewer:

(under subclass 894) Subject matter wherein an optical tube permits clear viewing of an under-water article.