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 amplifiers
摘要
申请公布号
GB485990(A)
申请公布日期
1938.05.23
申请号
GB19370032154
申请日期
1936.11.23
申请人
PHILCO RADIO AND TELEVISION CORPORATION
发明人
分类号
H03F3/36
主分类号
H03F3/36
代理机构
代理人
主权项
地址
您可能感兴趣的专利
RUBBER COMPOSITION
Motor assisted bicycle
WEARING ARTICLE
Pyrazoloquinoline compounds
PARKING LOCK
Torch for tungsten inert gas welding and electrode to be used in such torch
Protection of series data
STERILIZATION AND DECONTAMINATION OF AN ECLOSED ENVIRONMENT
Stent delivery assembly for treating bifurcations
MEMORY ALLOY-ACTUATED APPARATUS AND METHODS FOR MAKING AND USING THE SAME
HERBICIDAL COMPOSITION AND METHOD OF USING THE SAME
RADOME EQUIPMENT
WIRELESS COMMUNICATION SYSTEM, COMMUNICATION DEVICE, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION PROGRAM
DEVICE FOR CLEANING A JET STRIP FOR HYDRO-ENTANGLEMENT SYSTEMS
COMPOSITIONS CONTAINING AMIDE SURFACTANTS AND METHODS FOR INHIBITING THE FORMATION OF HYDRATE AGGLOMERATES
Network device
Progressive-power lens and progressive-power lens design method
CENTRIFUGAL DEHYDRATION METHOD AND CENTRIFUGAL DEHYDRATION DEVICE
Modified bio-related substance, process for producing the same, and intermediate
Packaging machine for wrapping products in respective sheets of heat-seal wrapping material
