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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4847344
Kind Code:
U
More Like This:
Application Number:
JP9174971U
Publication Date:
June 21, 1973
Filing Date:
October 06, 1971
Export Citation:
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International Classes:
G03B31/00; (IPC1-7): G03B31/00



 
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