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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4318524
Kind Code:
Y1
Application Number:
JP2179665U
Publication Date:
July 31, 1968
Filing Date:
March 18, 1965
Export Citation:
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International Classes:
G03B15/08; G02B27/10; G03B15/00; G03B15/12; (IPC1-7): G03B15/00; G02B27/10