MAINTENANCE SYSTEM FOR KEY TELEPHONE SYSTEM,申请号JP19900237400-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	MAINTENANCE SYSTEM FOR KEY TELEPHONE SYSTEM
摘要
申请公布号	JPH04117893(A)	申请公布日期	1992.04.17
申请号	JP19900237400	申请日期	1990.09.07
申请人	NEC CORP	发明人	NAGATOMI KAZUYUKI
分类号	H04M3/10;H04Q3/58	主分类号	H04M3/10
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Maxitorque drive

Active matrix liquid crystal display devices

Retractable golf shoes spikes

A reel of optical fibre

A vehicle component system for human condition monitoring

Improvements in or relating to levels and/or plumbs

Mobile coupled security device

Plant growth-acceleration system

Products and processes therefor

Water conservation recovery unit

Modular cold display and vending system

Cellular mattress

Device for retaining supports for plants in a container

Method of monitoring turbo pump operation in ion implantation apparatus for use in manufacturing semiconductors

Back washing mat

Improved pair of compasses

Offshore structure

Steel for machine structural use and machine parts made from such steel

Method of frying food-stuffs and apparatus therefor