US 4,189,2121980
Assignee: Nippon Kogaku K.K.
Inventors: Norio Mizutani, Soichi Nakamura
2 related patents across 2 interactive lens diagrams.
Assignee: Nippon Kogaku K.K.
Inventors: Norio Mizutani, Soichi Nakamura
Assignee: Nippon Kogaku K.K.
Inventors: Norio Mizutani, Yoshinari Hamanishi