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 thermionic valves
摘要
申请公布号
GB528227(A)
申请公布日期
1940.10.24
申请号
GB19390012989
申请日期
1939.05.01
申请人
THE M - O - VALVE COMPANY LIMITED;WILLIAM HERBERT ALDOUS
发明人
分类号
H01J21/20;H01J43/02
主分类号
H01J21/20
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Method for measuring volume by an optical surface profilometer in a micromechanical device and a system for carrying out said measurement
Apparatus and method for temporal noise reduction and motion enhancement
Signal processing method and device, and analog/digital converting device
VCO digital range selection
Method for locating leaks in pipes
Electromagnetic tracking method and system
Power converter control
Motor controlling device
High temperature photonic structure for tungsten filament
Semiconductor constructions, and electronic systems
Robust ESD LDMOS device
Integrated semiconductor chip with lateral thermal insulation
Composition for forming passivation layer and organic thin film transistor comprising the passivation layer
Thin film transistor, electro-optical device, and electronic apparatus
Backside illuminated imaging device, semiconductor substrate, imaging apparatus and method for manufacturing backside illuminated imaging device
Plants and seeds of corn variety CV715590
Cure accelerators
Method for forming a photoresist pattern
Composition based on natural extracts useful in the prevention and treatment of cutaneous wrinkles
Transmission cable
