US PATENT SUBCLASS 434 / 303
.~.~ Optics

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

276  DF  SCIENCE {9}
300  DF  .~ Physics {3}
303.~.~ Optics

DEFINITION

Classification: 434/303

Optics:

(under subclass 300) Subject matter relating to light, its genesis or propagation, or the effect that it undergoes or produces when propagated through a substance or object (e.g.., a lens or prism.