US PATENT SUBCLASS 250 / 475.2
.~ Photographic type

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

472.1  DF  INVISIBLE RADIATION RESPONSIVE NONELECTRIC SIGNALLING {4}
475.2.~ Photographic type {1}
482.1  DF  .~.~> With radiation filter, modifier, or shield (e.g., dosimeter badges)

DEFINITION

Classification: 250/475.2

Photos:graphic type:

(under subclass 472.1) Subject matter wherein the detector comprises a photos:graphic type material, (e.g., in a film or

plate), in a light proof housing, (e.g., cassettes or film packs), having at least a portion previous to invisible radiation.

(1) Note. Included in this subclass are cassettes and packs, per se, for invisible radiation responsive photos:graphic type detectors.

SEE OR SEARCH CLASS

378, X-Ray or Gamma Ray Systems or Devices,

167+, for X-ray responsive photos:graphic detector supports.