Document Type and Number:
Japanese Patent JPS5498996
Kind Code:
U
Application Number:
JP17403877U
Publication Date:
July 12, 1979
Filing Date:
December 26, 1977
Export Citation:
International Classes:
G08B17/00; G08B21/00; G08B23/00; G08B25/00; G08B25/01; H04Q9/06; (IPC1-7): H04Q9/06; G08B17/00; G08B21/00; G08B25/00
Domestic Patent References:
| JPS5087395U | 1975-07-24 |