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
Microwave filter
摘要
申请公布号
US2623120(A)
申请公布日期
1952.12.23
申请号
US19500156959
申请日期
1950.04.20
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
ZOBEL OTTO J.
分类号
H01P1/208
主分类号
H01P1/208
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Integrated circuit
Method and apparatus for spatial energy coverage
Method and apparatus for hydration of calcium oxide
Self boosting technique
Flexible flashlight with LED light source
Lens
System and method for performing halftone processing of color and monochrome data
Use of extracts and preparations from iris plants and tectorigenin as medicaments
Novel photonic bandgap fibre, and use thereof
Line selected F2 two chamber laser system
Inclined leg press weight training machine
Semiconductor device and fabrication thereof
Conditional access personal video recorder
Optical device having micro lens array and method for manufacturing the same
Silver plating method and articles made therefrom
Controlling admisson of data streams onto a network based on end-to-end measurements
Systems, methods and apparatus for providing a plurality of telecommunication services
Desktop charger for bar-type portable wireless terminal