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
SOUND RECORDING APPARATUS
摘要
申请公布号
CA408020(A)
申请公布日期
1942.10.13
申请号
CAD408020
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
GLENN L. DIMMICK
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
MEASURING METHOD FOR WEAR QUANTITY OF FIRST WALL PROTECTIVE MATERIAL OF NUCLEAR FUSION REACTOR
MANUFACTURING METHOD OF ELECTROMAGNETIC SHIELD WIRING BOARD
PLASMA TREATMENT DEVICE
STAND-BY HOST SYSTEM
DRAWING PROCESSOR
SCAN IMAGE OUTPUT SYSTEM OF SCANNING TUNNELING MICROSCOPE
CLAD GLASS FOR OPTICAL FIBER
METHOD FOR WASHING BATHTUB AND BATHTUB WASHING DEVICE USING THE METHOD
RECTILINEAR MOTION TYPE MOTOR
IMAGE PICKUP DEVICE
DATA TRANSMITTER
WATER SUPPLY CONTROLLER
MANUFACTURE OF SHUTTER BLADE FOR CAMERA
FIRE-PROOF COMPOUNDS
SYSTEM FOR REMOVING GAS IN LIQUID
DIRECT-READ-AFTER-WRITE TYPE OPTICAL DISK DEVICE
SPEED CONTROLLING METHOD OF DC MOTOR
CHANGEOVER-TO-ANALOG SYSTEM FOR DIGITAL TELEPHONE SET AT NIGHT OR ON EMERGENCY
WIDE ASPECT TELEVISION RECEIVER
TEMPERATURE SENSOR