首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
ANNOUNCEMENT SYSTEM
摘要
申请公布号
EP0138536(A3)
申请公布日期
1985.06.05
申请号
EP19840306819
申请日期
1984.10.05
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
WILLIS, ALAN RICHARD;BRUCE, IAN PETER COLE;GIBSON, DAVID LYNTON;WHITBREAD, HUGH
分类号
H04M3/487;H04Q11/04;(IPC1-7):H04Q11/04;H04M3/50
主分类号
H04M3/487
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MICROPROGRAM CONTROLLER
THYRISTOR
PROCESSING METHOD OF SEMICONDUCTOR SURFACE
PRODUCTION OF SEMICONDUCTOR SEALED PRODUCTS
SLUDGE RECOVERING SUNCTION HEAD
SLUDGE COMPRESSING DEHYDRATOR
MACHINE OF PROCESSING HOLES FOR FITTING LIFTING HOOKS OF DOOR
GAS OPERATING DEVICE FOR AUTOMATIC CHARGING LIGHT FIREARMS WITH BULLETS
METHOD OF COVERING METAL PLATE ROOF
STARTING REACTOR
FUEL LIMITING DEVICE IN SPEED GOVERNER OF INTERNAL COMBUSTION ENGINE
MEASURING PHOTOCONTACT DEVICE WITH LIGHT INDICATION
MOVIE PROJECTOR GENEVA DRIVE
PNEUMATIC REPEATER WITH SHIFT
RECIPROCATING MOTION MECHANISM HYDRAULIC DRIVE
PRESSURE REGULATOR
METHOD OF STABILIZING AUTOMATIC REGULATION SYSTEMS
LOOSE MATERIAL FLOWMETER
PLANETARY ANTIFRICTION BEARING
COAL-MINING MACHINE FEEDING ARRANGEMENT