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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS502536
Kind Code:
A
Application Number:
JP5090573A
Publication Date:
January 11, 1975
Filing Date:
May 07, 1973
Export Citation:
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International Classes:
G03B31/00; G03B31/02; (IPC1-7): G03B31/02



 
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