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
Phonographic apparatus
摘要
申请公布号
US2262131(A)
申请公布日期
1941.11.11
申请号
US19390302069
申请日期
1939.10.31
申请人
RADIO CORPORATION OF AMERICA
发明人
BEIZER HAROLD H.
分类号
G11B17/02
主分类号
G11B17/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PRESSURIZING PRESSING DEVICE
CONTINUOUS MANUFACTURE OF HEAT-RESISTANT METHACRYLATE RESIN SHEET
SOIL AMENDING AGENT
POLYESTERIMIDE FORMED ARTICLE
PRODUCTION OF ETHYLENE/VINYL ACETATE COPOLYMER
CURABLE RESIN COMPOSITION FOR SOLDER RESIST INK
MODIFICATION SYSTEM FOR TERMINAL ACCOMMODATION POSITION
FUEL SUPPLY CONTROL DEVICE FOR DIESEL ENGINE
RELIEF VALVE OF ENGINE
升压器补偿的低压高精度电压互感器
三辊楔横轧轴件的方法及专用装置
JET PUMP
FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE
WATER SEALING TYPE ROOTS BLOWER
INTAKE DEVICE FOR DIESEL ENGINE
TWO-CYCLE ENGINE
MANUFACTURE OF TWO-LAYER PIPE
METHOD OF GLOW DISCHARGE ACTIVATING REACTIVE PRECIPITATION OF CONDUCTIVE MATERIAL FROM GASEOUS PHASE
SPUTTERING METHOD
TWO-CYCLE INTERNAL-COMBUSTION ENGINE WITH EXHAUST VALVE HYDRAULIC DRIVING DEVICE
