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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6216939
Kind Code:
U
Application Number:
JP10788185U
Publication Date:
January 31, 1987
Filing Date:
July 15, 1985
Export Citation:
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International Classes:
G03B9/36; (IPC1-7): G03B9/36
Domestic Patent References:
JPS55164818A1980-12-22
JPS5849924A1983-03-24
JPS59149133U1984-10-05