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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5031739
Kind Code:
Y1
Application Number:
JP8691270U
Publication Date:
September 16, 1975
Filing Date:
September 01, 1970
Export Citation:
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International Classes:
G03B31/06; G03B31/02; (IPC1-7): G03B31/02



 
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