US PATENT SUBCLASS 356 / 26
.~.~ Vibrating or oscillating element

Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

23  DF  MOTION STOPPING (E.G., STROBOSCOPES) {2}
25  DF  .~ Periodically moving light interrupting element {1}
26.~.~ Vibrating or oscillating element

DEFINITION

Classification: 356/26

(under subclass 25) Subject matter where the opaque element vibrates or oscillates.