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 radio aerial systems and particularly directive aerial systems
摘要
申请公布号
GB638296(A)
申请公布日期
1950.06.07
申请号
GB19470010587
申请日期
1947.04.21
申请人
THE MINISTER OF SUPPLY
发明人
JOHNSON WILLIAM ARTHUR
分类号
H01Q3/14;H01Q15/12;H01Q19/22
主分类号
H01Q3/14
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ELECTRONIC SWIMMER MONITORING SYSTEM
EXPANSION VALVE
silicon gun
HANDCART
Method of Manufacturing Metal Oxide Semiconductor Field-Effect Transistor Having Dual Work Function Gate
system for supporting video message service and method thereof
Device for placing articles in a trench
Tape drive and method of operation of a tape drive
Valves
Image processing method
A detachable cup holder
Method of forming high-K gate electrode structures after transistor fabrication
Web fed printing method and web feeding apparatus
Double-acting synchronizer having both single and nested conical friction surfaces between respective gearwheels
Tap instalation bracket
Log cabin roof with offset apex
Swimming pool overflow channel
LUBRICATING OIL COMPOSITION FOR DIESEL ENGINE
ADAPTER FOR CANNULAS FOR DISPENSING PRODUCTS AND CANNULA THEREFOR
disposição construtiva introduzida em brise.