US PATENT SUBCLASS 396 / 152
.~.~.~ And reflector or refractor

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

89  DF  WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS {28}
148  DF  .~ Having viewfinder {2}
150  DF  .~.~ Including focusing screen {2}
152.~.~.~ And reflector or refractor

DEFINITION

Classification: 396/152

And reflector or refractor:

(under subclass 150) Subject matter including an optical device that turns back or bends light (e.g., mirror or prism), behind the exposure objective for directing light to the focusing screen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

, FOR 841, for a foreign art collection involving manual camera focusing including focusing screen and reflector.