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 carbon microphones
摘要
申请公布号
GB1028775(A)
申请公布日期
1966.05.11
申请号
GB19630029131
申请日期
1963.07.23
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
BEADLE ANTHONY CRISP
分类号
H04R21/02
主分类号
H04R21/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Experiment and education system employing a plurality of units
Thrust roller bearing
Differential pitch hammerless connection with hydraulic driving mechanism
Label assembly for applying a label to an object
Trailer hitch safety assembly
All-terrain retail merchandising unit
Compression coil spring device having a discrete support
Liquid-droplet ejecting apparatus
Disposable car cover
Dual capstan puller and method
Ceiling mounted lift for a multi-purpose projector
Method for fixing an engine strut to an airplane wing
Injection valve
Fuel injection nozzle
Recess filling apparatus
Building design of a container-drum
Rotating stand (carousel) bottle and tube holder
Vacuum package system
Toeboard clamp system
Porous metal bodies used for attenuating aviation turbine noise
