(under subclass 46) Subject matter including a plurality of projectors as there defined or two or more optical paths for projecting onto separate viewing screens or separated areas on a viewing screen.
(1) Note. Subclasses 30+ above has plural projectors for projecting to form a composite image on a common viewing screen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30+, 89+ and 94, for plural projectors or projection paths.