Document Type and Number:
Japanese Patent JPS6323689
Kind Code:
Y2
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Application Number:
JP1345884U
Publication Date:
June 29, 1988
Filing Date:
February 02, 1984
Export Citation:
International Classes:
G02B6/36; G02B6/00; G02B6/02; G02B6/10; G02B6/44; (IPC1-7): G02B6/36