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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS486680
Kind Code:
Y1
Application Number:
JP6087470U
Publication Date:
February 20, 1973
Filing Date:
June 19, 1970
Export Citation:
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International Classes:
G03B7/089; G03B9/64; G03B17/18; (IPC1-7): G03B17/18; G03B9/64



 
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