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
MICROPHONE
摘要
申请公布号
CA312388(A)
申请公布日期
1931.06.16
申请号
CAD312388
申请日期
申请人
THE RADIO CORPORATION OF AMERICA
发明人
GERRIT PEUSKEN;AREND THOMAS VAN URK;ROELOF VERMEULEN
分类号
主分类号
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MANUFACTURE OF ROTOR FOR INDUCTION MOTOR
PICTURE PROCESSOR
MANUAL SCAN-TYPE PICTURE PROCESSING UNIT
CHARGER
CONTROL SYSTEM FOR CALL MODE SWITCHING
FREQUENCY CONTINUOUS VARIABLE PHASE LOCKED LOOP CIRCUIT
MANUFACTURE OF SOLID-STATE IMAGE SENSING DEVICE
MULTIPLEX MICROWAVE FILTER AND METHOD OF ADJUSTING THE FILTER
MANUFACTURE OF SEMICONDUCTOR DEVICE
COMPUTER SYSTEM
DATA PROCESSOR
ELECTROCHROMIC DISPLAY
PRESSING DEVICE FOR DEVELOPING DEVICE
BRAKING DEVICE FOR SHUTTER
OPTICAL AXIS ADJUSTOR
BEAM SCANNER
CABLE REPEATER
TIME INTERVAL MEASURING DEVICE
LIQUID FLOWMETER
FAR INFRARED RAY RADIATING LOW TEMPERATURE DRYING MACHINE
