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 electronic amplifiers
摘要
申请公布号
GB773383(A)
申请公布日期
1957.04.24
申请号
GB19540037844
申请日期
1954.12.31
申请人
ROCHAR ELECTRONIQUE
发明人
分类号
H03F1/04;H03F1/54;H03F3/28;H03F3/32
主分类号
H03F1/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ACTIVE HOOD DEVICE FOR VEHICLE
LED-Leuchtmittel
REAL-TIME MOVING PLATFORM MANAGEMENT SYSTEM.
REFRIGERATING FURNITURE, IN PARTICULAR REFRIGERATING SHELF.
EMF-SHIELDED PLASTIC‑PREPREG HYBRID STRUCTURAL COMPONENT.
ACID-FREE QUATERNISED NITROGEN COMPOUNDS AND USE THEREOF AS ADDITIVES IN FUELS AND LUBRICANTS.
APPARATUS AND METHODS FOR REAL TIME COMMUNICATION BETWEEN DRILL BIT AND DRILLING ASSEMBLY.
Method for producing a dielectric matrix composites containing metal and/or semiconductor nanoparticles, in the form of rods having the plasmonic properties
Laboratory pressure module for the membrane separation of a cross-flow
SYSTEM AND METHOD FOR DISASTER INFORMATION COMMUNICATION
method and apparatus for measuring activity state of moving object and device control system using them
method for increasing aromatic compounds in cultured wild ginseng using the Picrasma quassioides Benn bark extract
Opening-closing device of manuscript pressing plate and office machine
METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA MESSAGING SERVICE USING SMART TERMINAL APPLICATION
JOINT FOR INSTALLING BANNER STRUCTURE
METHOD FOR PRODUCINGβ-MERCAPTO CARBOXYLIC ACIDS
A BAG COMBINED WITH MAT
MEASURING DEVICE FOR THE SPACER GRID WIDTH OF NUCLEAR FUEL ASSEMBLY
ANTENNA DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME
Liquid Crystal Display And Driving Method Thereof