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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5552414
Kind Code:
Y2
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Application Number:
JP1967875U
Publication Date:
December 05, 1980
Filing Date:
February 14, 1975
Export Citation:
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International Classes:
G03B21/11; G03B23/00; G03B23/04; G06K21/00; (IPC1-7): G03B21/11; G03B23/00; G03B23/04