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:
Jan. 25, 1977
Filed:
Dec. 03, 1975
Applicant:
Inventor:
Friedrich Papke, Braunschweig, DT;
Assignee:
Rollei-Werke Franke & Heidecke, Braunschweig, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354246 ; 354250 ;
Abstract
Each slide is comprised of an exposure slit defining lamella moved on parallel swinging arms in front of the image aperture, whereby the arms overlap each other in part, as well as the lamella to provide additionally shutter functions for covering portions of the aperture which are to be covered but are not covered by the lamella in any phase of movement or position of deployment.