US PATENT SUBCLASS 355 / 124
.~.~ With shutters
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 355/124
(under subclass 122) Subject matter including structure for selectively blocking and unblocking the light path to expose the light sensitive material to the photos:graphic light.
(1) Note. The shutter need not be completely opaque, but only opaque to the photos:graphic light. A shutter formed as a ruby filter would be classified here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71, for projection type copiers with shutter in the illumination system.
101, for printing machines with shutters.
116, for fast operated shutters. 121, for light box with shutter.
123, for strip film frames having shutters.
SEE OR SEARCH CLASS
352, Optics: Motion Pictures, appropriate subclasses, especially
204+, for shutter utilized in motion picture apparatus.
359, Optics: Systems (Including Communication) and Elements,
227+, for shutters generally; and subclasses 738+ for lenses with shutter.
396, Photography,
452+, for camera shutters.
