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
Improvements in or relating to cathodes for use in electron discharge devices
摘要
申请公布号
GB428847(A)
申请公布日期
1935.05.13
申请号
GB19330022813
申请日期
1933.08.15
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H01J1/14
主分类号
H01J1/14
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PRINTING APPARATUS
ROTARY STAND
CONTAINER WITH AUXILIARY LID HAVING SEALING FUNCTION
SPUTTERING TARGET AND MANUFACTURING METHOD THEREFOR
TREATING SOLUTION FOR DERMATOSIS CONTAINING ULTRAFINE POWDER OF TITANIUM OXIDE
Antiparallel magnetoresistive memory cells
Modular food guard apparatus and systems and methods of use thereof
Radio signal receiver
Method for manufacturing flip chip package devices with a heat spreader
Device having a radial partition, especially for arresting the propagation of a radial buckle in a double-walled pipe in tended for great depts
System for storing and updating document data and method thereof
System for converting GR303 signals to NCS signals
Production of smokeless biomass based briquetted fuel comprises wet pressing of coal and binder-based screened mix for co-pyrolysis
ARNES PARA TEJER Y MAQUINA TEJEDORA JACQUARD CON ARNES PARA TEJER.
METODO PARA LA ALINEACION ESPECTRAL EN TIEMPO REAL PARA ESPECTROMETROS DE INFRARROJOS CON TRANSFORMADA DE FOURIER DE TRAYECTORIA ABIERTA.
RECEPTACULO CON DOS COMPARTIMIENTOS PARA COMPONENTES REACTIVOS DE AGENTE DE ESTERILIZACION EN POLVO.
TUERCA DE SUJECION.
UTILIZACION DE CEPAS DE TORULASPORA DELBRUECKII EN LA PRODUCCION DE MASAS DULCES.
DISPOSITIVO DE GARRA RETRACTIL PARA LA RECUPERACION DE BLOQUES SUMERGIDOS EN UN MEDIO MARITIMO.
SEMICONDUCTOR LASER DRIVING CIRCUIT AND DRIVING METHOD