发明名称 MULTI-FUNCTIONAL DOOR BUZZER DEVICE
摘要 FIELD: secure locking equipment for doors of multi-flat houses. ^ SUBSTANCE: device is an element of integrated multi-functional control system within intellectual building concept. ^ EFFECT: higher reliability, broader functional capabilities, simplified construction, higher durability. ^ 17 cl, 2 dwg
申请公布号 RU2257682(C2) 申请公布日期 2005.07.27
申请号 RU20030108554 申请日期 2003.03.27
申请人 发明人 DUNAEV A.A.;LIKHACHEV V.E.
分类号 H04M11/02 主分类号 H04M11/02
代理机构 代理人
主权项
地址