US 4,666,2601987
Assignee: Asahi Kogaku Kogyo Co., Ltd.
Inventors: Takayuki Ito
3 related patents across 3 interactive lens diagrams.
Assignee: Asahi Kogaku Kogyo Co., Ltd.
Inventors: Takayuki Ito
Assignee: Asahi Kogaku Kogyo Co., Ltd.
Inventors: Masayuki Murata, Takayuki Ito
Assignee: Pentax Corporation
Inventors: Masayuki Murata, Takayuki Ito