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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5131658
Kind Code:
Y2
Application Number:
JP1449172U
Publication Date:
August 07, 1976
Filing Date:
February 05, 1972
Export Citation:
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International Classes:
H01P3/20; G02B6/02; G02B6/14; H01P3/00; (IPC1-7): G02B5/14; H01P3/00