REPROGRAFISCHE INRICHTING.

摘要

1313016 Photographic projection apparatus XEROX CORP 21 Sept 1970 [22 Sept 1969] 42318/72 Divided out of 1313015 Heading G2A The description is the same as in Specification 1313015, but the claims relate to copying apparatus having a light shield adjacent the light receiving surface, said shield having a field stop opening which is coverable by an opaque member to render the shield light tight.