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 tube oscillator circuits
摘要
申请公布号
GB497865(A)
申请公布日期
1938.12.30
申请号
GB19370023928
申请日期
1937.09.01
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
H03B5/10
主分类号
H03B5/10
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Magnetic bearing device with an improved vacuum feedthrough
CO-DOPED TITANIUM OXIDE FOAM AND WATER DISINFECTION DEVICE
COSMETIC METHOD USING A COMPOSITION COMPRISING A SILOXANE RESIN AND A VOLATILE HYDROCARBON-BASED SOLVENT
NOISE SUPPRESSION METHOD AND APPARATUS
珠粒形式的可发苯乙烯聚合物组合物的制备方法
SDH/SONET未装载插入方法及设备
燃料重整装置、其驱动方法及包括该装置的燃料电池系统
机场道面微细裂缝快速修补剂及其制备方法
Method and system for establishing and maintaining high speed radio access bearer for foreground application
一种铁矿球团粘结剂的生产方法
Bending instrument for an endoscope and endoscope set
Electric power converter and mounting structure of semiconductor device
便携式显示设备
PROCESS FOR PRODUCING CONDUCTIVE MAYENITE COMPOUND
一种往复式室温磁制冷机
EARTH-BORING TOOLS ATTACHABLE TO A CASING STRING AND METHODS FOR THEIR MANUFACTURE
信息服务器装置和客户机终端装置
存储管理系统及方法
VEHICLE LANE DEPARTURE DETECTING DEVICE
POWER CONVERSION DEVICE, POWER CONVERSION DEVICE MODULE, AIR CONDITIONER, AND FREEZING DEVICE