DE 2 222 892 A11973
Assignee: Ernst Leitz GmbH
Inventors: Georg Knetsch, Hermann Desch, Heinz Marquardt, Walter Watz
1 related patent across 1 interactive lens diagram.
Assignee: Ernst Leitz GmbH
Inventors: Georg Knetsch, Hermann Desch, Heinz Marquardt, Walter Watz