US PATENT SUBCLASS 396 / 517
.~.~ Plate or cut film holder

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

439  DF  CAMERA DETAIL {15}
511  DF  .~ Detachable or removable film holder unit {2}
517.~.~ Plate or cut film holder {8}
518  DF  .~.~.~> Light seal
519  DF  .~.~.~> Plate fastening or kit {1}
521  DF  .~.~.~> Solution drain or resistant
522  DF  .~.~.~> Closure lock or check
523  DF  .~.~.~> Auxiliary
524  DF  .~.~.~> Having dark slide {2}
527  DF  .~.~.~> Self-developing
528  DF  .~.~.~> Flexible holder

DEFINITION

Classification: 396/517

Plate or cut film holder:

(under subclass 511) Subject matter wherein the support means holds a sheet of light-sensitive material during its exposure in the camera, and the holder must be removed from the camera after each exposure to place the next sheet of film in position for exposure or protects the material while it is being transported.

(1) Note. Devices which are not merely double plateholders, but by means of which separate light-sensitized surfaces or separate portions of the same light-sensitive material are simultaneously exposed in a stereoscopic camera, are classified in this class, subclasses 324+. Where these separate surfaces or portions are successively brought into the same position relative to a lens for exposure, even when they are not separable from the camera, they are classified according to the means used in subclasses 333+, 335+, 360+, and 414.

(2) Note. Ground glass screens combined with plateholders and camera guides are found in this class, subclasses 150+.

(3) Note. Magazines in which two or more light-sensitive surfaces not in the same plane are brought to an exposure position one at a time without opening the receiver to the light are classified in this class, subclasses 360+.

SEE OR SEARCH CLASS

235, Registers,

91+, for devices which register the number of times the plateholder has been opened to indicate the number of prints taken.

378, X-Ray or Gamma Ray Systems or Devices, 167+, for photos:graphic detector supports including film and plate moving and positioning means.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, appropriate subclasses for a holder in combination with chemically defined radiation-sensitive film or plates.