Document Type and Number:
Japanese Patent JPH0233215
Kind Code:
Y2
Application Number:
JP7128285U
Publication Date:
September 07, 1990
Filing Date:
May 14, 1985
Export Citation:
International Classes:
G02C1/00; G02C3/02; G02C5/04; G02C5/20; (IPC1-7): G02C3/02; G02C5/04
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