(under the class definition) Subject matter wherein a desired one of a plurality of individual units of information may selectively be moved into the optical path for projection from a stored or nonprojectable position either by positioning the unit in the optical path or by moving the optical path to the individual unit.
(1) Note. The subject matter here (subclasses 25, 26, 28) involves the selection of any one of the units from the group without regard to any sequential arrangement of the units as is provided for in the subclasses below.
(2) Note. The data or information projected here is a record such as an account or real estate register rather than a mere picture to be viewed for enjoyment.
SEE OR SEARCH CLASS
355, Photocopying,
40+, for selecting the data to be copied by a projection printer. 365, Static Information Storage and Retrieval,
185.01+, for floating gate memory storage (e.g. flash memory), subclass 120 for the storage and retrieval of information which has inherent means for reading information into and out of the storage system.
382, Image Analysis,
181+, for character-recognition systems.
399, Electrophotography,
9+, for diagnostics, subclasses 38+ for controls, subclasses 130+ for image formation, subclasses 168+ for charging, subclasses 177+ for exposure, subclasses 222+ for development, subclasses 297+ for transfer, subclasses 320+ for fixing, subclasses 343+ for cleaning, and subclasses 361+ for document handling.
