US PATENT SUBCLASS 434 / 303
.~.~ Optics


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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.