US PATENT SUBCLASS 356 / 302
.~ For spectrographic (i.e., photographic) investigation

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

300  DF  BY DISPERSED LIGHT SPECTROSCOPY {10}
302.~ For spectrographic (i.e., photographic) investigation {3}
303  DF  .~.~> With spectral analysis
304  DF  .~.~> With sectored disc
305  DF  .~.~> With diffraction grating

DEFINITION

Classification: 356/302

For spectros:graphic (i.e., photos:graphic) investigation:

(under subclass 300) Subject matter which includes an entrance slit, a dispersing means, an aperture, and a photos:graphic medium associated with the aperture for recording the dispersed spectrum or portions thereof.

SEE OR SEARCH CLASS

250, Radiant Energy,

316.1, for infrared or thermal pattern recording methods and apparatus; and subclasses 580+ for methods and apparatus photographing invisible radiation or materials subjected to invisible radiation generally.

346, Recorders,

107.1+, for optical recording of phenomenal information.

347, Incremental Printing of Symbolic Information,

224+, for apparatus and processes using light or beam to mark the record receiver. 378, X-Ray or Gamma Ray Systems or Devices,

70, for X-ray diffraction analysis.

396, Photography, for photos:graphic cameras for exposing photos:graphic film.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, for process, product, and composition used in radiation imagery.