Title:
【考案の名称】拡声式通話型火災報知機
Document Type and Number:
Japanese Patent JPS5963791
Kind Code:
U
Inventors:
Fujio Yamazaki
Application Number:
JP15603382U
Publication Date:
April 26, 1984
Filing Date:
October 15, 1982
Export Citation:
International Classes:
G08B17/00; G08B25/00; G08B25/04; (IPC1-7): G08B25/00; G08B17/00
Domestic Patent References:
| JPS553516U | 1980-01-10 | |||
| JPS4938106B1 | 1974-10-15 |