The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 1979
Filed:
Sep. 19, 1977
Applicant:
Inventor:
Walter Rauffer, Munich, DE;
Assignee:
Agfa-Gevaert AG., Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
353 / ; 353 22 ; 353120 ;
Abstract
Microfilm is inserted between two or more parallel, transparent, laterally invertible support plates placed in a light path emanating from a light source and travelling to a projection objective. The plates are placed in a tray which can be slided in two directions normal to the light path. The microfilm located more closely to the reader is in proper position for one or more projection objectives. For reading the microfilm located on the other side, the plates are inverted in order to bring this film in proper reading position.