Document Type and Number:
Japanese Patent JPH0214331
Kind Code:
U
Application Number:
JP9451388U
Publication Date:
January 29, 1990
Filing Date:
July 15, 1988
Export Citation:
International Classes:
G02C3/02; A42B1/24; G02C7/10; (IPC1-7): A42B1/24; G02C3/02; G02C7/10
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