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
RINGING GENERATOR
摘要
申请公布号
GB2037031(A)
申请公布日期
1980.07.02
申请号
GB19790018170
申请日期
1979.05.24
申请人
MITEL CORP
发明人
分类号
H04M3/02;H04M19/02;(IPC1-7):G05F1/00
主分类号
H04M3/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SUBSTRATE WITH A SUPPORTING PLATE AND FABRICATION METHOD THEREOF
OVERLAY MARK
PACKAGE ON PACKAGE (POP) DEVICE COMPRISING A HIGH PERFORMANCE INTER PACKAGE CONNECTION
INTERPOSER WITH SIGNAL-CONDITIONED EDGE PROBE POINTS
INTERPOSER WITH LATTICE CONSTRUCTION AND EMBEDDED CONDUCTIVE METAL STRUCTURES
Power Semiconductor Package Having Reduced Form Factor and Increased Current Carrying Capability
POWER FIELD-EFFECT TRANSISTOR (FET), PRE-DRIVER, CONTROLLER, AND SENSE RESISTOR INTEGRATION FOR MULTI-PHASE POWER APPLICATIONS
Integrated Power Assembly with Reduced Form Factor and Enhanced Thermal Dissipation
INTEGRATED CIRCUIT (IC) PACKAGE WITH A SOLDER RECEIVING AREA AND ASSOCIATED METHODS
CUSTOMIZED MODULE LID
PLASMA ETCHING METHOD
Method of Semiconductor Integrated Circuit Fabrication
METHOD FOR CLEANING A WAFER
FILM FORMING METHOD
ILLUMINANT AND OPERATING METHOD THEREFOR
HIGH-VOLTAGE POWER UNIT AND MASS SPECTROMETER USING THE POWER UNIT
APPARATUS AND METHOD TO CONTROL AN ION BEAM
SOURCE FOR SELECTIVELY PROVIDING POSITIVELY OR NEGATIVELY CHARGED PARTICLES FOR A FOCUSING COLUMN
Charged Particle Beam Device
ION SOURCE FOR SOFT ELECTRON IONIZATION AND RELATED SYSTEMS AND METHODS