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 high- or intermediate-frequency thermionic amplifiers
摘要
申请公布号
GB504696(A)
申请公布日期
1939.04.28
申请号
GB19380024693
申请日期
1938.08.22
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H03G3/16
主分类号
H03G3/16
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Surveillance camera
Combined portable television receiver and radio
Handle loop for luggage or the like
Microwave oven
Chopstick holder
Jacket-type coaster
Arm chair or similar article
Combined paint applicator and roller therefor
Substituted piperidines therapeutic process and compositions
Soccer game display and control panel or similar article
Data modem
CHARACTER RECOGNIZING METHOD AND DEVICE
HOIST WHICH WORK BY AIR
ELECTROSTATIC COATER
MANUFACTURE OF RADIATION-BRIDGED POLYOLEFIN
NON-ELECTRIC CHARGE AMMONIUM NITRATE OIL EXPLOSIVE COMPOSITION
WINCH
OPERATION OF ELECTROSTATIC DUST COLLECTOR
CRUSHER FOR FLUID DISPERSION SYSTEM CONTAINING SOLID
CATALYST FOR COMPLETE OXIDATION OF AMMONIA