Document Type and Number:
Japanese Patent JPH03127992
Kind Code:
U
Application Number:
JP3615290U
Publication Date:
December 24, 1991
Filing Date:
April 05, 1990
Export Citation:
International Classes:
G08B7/00; G08B19/00; G08B23/00; (IPC1-7): G08B23/00; G08B7/00; G08B19/00