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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6339886
Kind Code:
B2
Inventors:
YAMAGUCHI SHIN
TSUNEKAWA TOKUICHI
Application Number:
JP990879A
Publication Date:
August 08, 1988
Filing Date:
January 31, 1979
Export Citation:
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Assignee:
CANON KK
International Classes:
G03B7/099; G03B7/28