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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5233987
Kind Code:
B2
Application Number:
JP8210471A
Publication Date:
August 31, 1977
Filing Date:
October 19, 1971
Export Citation:
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International Classes:
G01R19/10; G01D7/00; G01D7/08; G01H3/10; H04H60/04; H04S7/00; (IPC1-7): G01D7/00; G10L1/12