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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5696430
Kind Code:
U
Application Number:
JP17968779U
Publication Date:
July 30, 1981
Filing Date:
December 25, 1979
Export Citation:
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International Classes:
G03B17/28; G03B17/30; (IPC1-7): G03B17/30
Domestic Patent References:
JPS461074A



 
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