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
Thermionic valve and other electric circuits
摘要
申请公布号
US2176200(A)
申请公布日期
1939.10.17
申请号
US19380188419
申请日期
1938.02.03
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
BLUMLEIN ALAN DOWER
分类号
H03F1/50
主分类号
H03F1/50
代理机构
代理人
主权项
地址
您可能感兴趣的专利
GENERATORE DI TENSIONE STABILIZZATA
PROCESS FOR PRODUCING IMPACT DAMPER FOR SEMICONDUCTOR PACKAGE OF POLYMER RESIN
ULTRASONIC MOTOR
ULTRASONIC DIAGNOSTIC APPARATUS
THERMAL TRANSFER INK SHEET
PROTECTIVE CIRCUIT FOR PRINTER MECHANISM CONTROL CIRCUIT
POWER SUPPLY FOR VEHICLE
MULTICOMPONENT OXIDE FOR PRODUCTION OF OXIDE SUPERCONDUCTOR AND PRODUCTION OF OXIDE SUPERCONDUCTOR
FM RECEIVER
PRODUCTION OF ZRB2-GRAPHITE REFRACTORY HAVING HIGH CORROSION RESISTANCE AND HIGH SPALLING RESISTANCE
PRODUCTION OF GARNET FINE PARTICLE POWDER
THERMAL PHOTOSENSITIVE COLORING COMPOSITION
CAR STEERING ANGLE CONTROL DEVICE
TORQUE RIPPLE REDUCTION METHOD OF VARABLE REACTANCE TYPE AC SERVO-MOTOR
LIQUID LEVEL CONTROL FLOAT VALVE IN THE BATHTUB
PERFLUORINATED POLYETHER FLUIDS
ELASTOMER COMPOSITE ELECTRODE
COLORED UNSATURATED POLYESTER MATERIAL CONTAINING COPOLYMERIZED METHINE DYES AND PRODUCTS THEREFROM
METHOD FOR PROCESSING WASTE PAPER INTO FIBROUS MASS
FREMGANGSMAADE TIL FREMSTILLING AF N,N-DIMETHYLAMINOMETHYLARYLFORBINDELSER
