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
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPH01286599(A)
申请公布日期
1989.11.17
申请号
JP19880115870
申请日期
1988.05.11
申请人
NEC CORP
发明人
NAGATANI MAMORU
分类号
H04Q3/58
主分类号
H04Q3/58
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Substrate with transparent conductive oxide film, process for its production and photoelectric conversion element
Chewing gum containing physiological cooling agents and method of preparing
Trailer hitch with separated functions
Driving tool having rotatable coupling
Suction shut off device for a cleaning apparatus
Preparation method of valienamine from acarbose and/or acarbose derivatives using trifluoroacetic acid
Precleaner arrangement for use in air filtration; method; and, air cleaner using same
Manufacturing method to construct semiconductor-on-insulator with conductor layer sandwiched between buried dielectric layer and semiconductor layers
Optical transceiver consistently satisfying optical alignment and heat-dissipation
Closed cassette and method for heat treating glass sheets
Method of emptying a container, and use of the method
Dinuclear copper-based compound and ligand for nucleic acid scission and anticancer treatment
Radio frequency identification tag
Semiconductor device and method of fabricating semiconductor device using oxidation
Aqueous solution plate control system and method
Method and apparatus for media data transmission
Scalable notification delivery service
System and method of wireless device activity messaging
Storage component and storage system
Method of handing off a packet switched to a circuit switched call