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 electron discharge devices
摘要
申请公布号
GB569494(A)
申请公布日期
1945.05.28
申请号
GB19420011271
申请日期
1942.08.12
申请人
WESTINGHOUSE ELECTRIC INTERNATIONAL COMPANY
发明人
分类号
H01J25/12
主分类号
H01J25/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
FLEXIBLE TUBE FOR BEVERAGE
TV SIGNAL PROCESSOR
FILM CARRYING DEVICE
PORTABLE WATCH WITH ROTATION DISPLAY DEVICE
FREQUENCY DETECTING CIRCUIT
PRESSURE CONTROL METHOD FOR ADJUSTING QUANTITY OF HEAT CONSIDERING FLUCTUATION IN FLOW RATE OF BOG
FUEL CHANGEOVER VALVE FOR SPARK IGNITION ENGINE
FREE-PISTON INTERNAL COMBUSTION ENGINE
PURIFICATION OF1,2-BIS(NICOTINAMIDE)PROPANE
METHOD FOR DESULFURIZING METHYLNAPHTHALENE-CONTAINING OIL
PRODUCTION OF HIGH-PURITY ACETYLENE GAS
SPLIT NUT
ENGINE
PRODUCTION BASE CONNECTION METHOD OF SUBMARINE OIL FIELD
PTO DRIVE RELEASING DEVICE FOR TRANSPORT VEHICLE
RELEASING DEVICE FOR PUNCHED CHIPS FOR PAPER PUNCHING MACHINE
CLAMP OPERATING CIRCUIT
SILICON NITRIDE BASED TOOL MATERIAL
HETEROJUNCTION BIPOLAR TRANSISTOR
MANUFACTURE OF SEMICONDUCTOR DEVICE