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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS638723
Kind Code:
U
Application Number:
JP10355686U
Publication Date:
January 21, 1988
Filing Date:
July 04, 1986
Export Citation:
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International Classes:
G02C7/10; G02C9/00; (IPC1-7): G02C9/00; G02C7/10