Document Type and Number:
Japanese Patent JPS557004
Kind Code:
U
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Application Number:
JP8542078U
Publication Date:
January 17, 1980
Filing Date:
June 23, 1978
Export Citation:
International Classes:
G08B17/00; G08B19/00; G08B21/00; G08B23/00; (IPC1-7): G08B23/00; G08B17/00; G08B19/00