US PATENT SUBCLASS 359 / 438
.~ Prism

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

436  DF  SCALE OR INDICIA READING {4}
438.~ Prism

DEFINITION

Classification: 359/438

Prism:

(under subclass 436) Subject matter including a prism which may reflect or refract light for better viewing the scale or indicia.

(1) Note. See subclass 831 for the definition of a prism.

SEE OR SEARCH THIS CLASS, SUBCLASS:

831+, for specific prism elements.