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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5319064
Kind Code:
Y2
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Application Number:
JP9809573U
Publication Date:
May 20, 1978
Filing Date:
August 23, 1973
Export Citation:
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International Classes:
G03B7/26; G03B7/00; G03B7/30; G03B9/08; (IPC1-7): G03B7/00