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Title:
【発明の名称】紫外線用色消レンズ
Document Type and Number:
Japanese Patent JP2881926
Kind Code:
B2
Inventors:
Shusuke Yamada
Koji Tsukuma
Tetsuo Fujii
Shinichi Kondo
Hideaki Segawa
Hiroshi Honda
Application Number:
JP6514090A
Publication Date:
April 12, 1999
Filing Date:
March 15, 1990
Export Citation:
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Assignee:
Tosoh Corporation
International Classes:
G02B9/00; (IPC1-7): G02B9/00
Domestic Patent References:
JP636512A
JP6081031A
JP6042239A
Attorney, Agent or Firm:
Takaishi Tachibana



 
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