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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5658467
Kind Code:
U
Application Number:
JP13887479U
Publication Date:
May 19, 1981
Filing Date:
October 05, 1979
Export Citation:
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International Classes:
H02H11/00; G01R31/02; G01R31/04; (IPC1-7): G01R31/02