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 sound recording
摘要
申请公布号
GB501043(A)
申请公布日期
1939.02.20
申请号
GB19370013955
申请日期
1937.05.19
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Apparatus for estimation noise level of video signal
MOBILE PHONE AND CONTROL METHOD THEREOF
PARALLEL ANALYSIS OF MOLECULAR INTERACTIONS
FLASH MEMORY DEVICE AND METHOD FOR FABRICATING THE SAME
METHOD AND FERMENTER FOR THE ANAEROBIC FERMENTATION OF BIOLOGICAL WASTE
METHOD AND APPARATUS FOR CONVEYING MATERIAL
Bearing angle comprising a cable duct
RADIO-FREQUENCY SYSTEM IN PACKAGE INCLUDING ANTENNA
AGENTES TERAPEUTICOS
FLUIDOS CON SOLIDOS PUENTEANTES DE MAGNESIA PARA LA PERFORACION Y SERVICIO DE POZOS, Y METODOS PARA PERFORAR, TERMINAR Y ACONDICIONAR UN POZO CON LOS MISMOS
GANCHO DE BLOQUEO REVERSIBLE PARA UN CARGADOR DE PISTOLA Y UN CONJUNTO INTEGRADO DE ENSAMBLAJE PARA UNA PISTOLA
BOLSA PARA VEGETALES FRESCOS
APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING REVERSE LINK CHANNEL IN A MOBILE COMMUNICATION SYSTEM FOR PACKET DATA
ANISOTROPIC TOUCH SCREEN ELEMENT
UN SISTEMA PARA GARANTIZAR EL ACOPLE DE UN FRENO HIDROMATICO EN UN EQUIPO DE PERFORACION O DE MANTENIMIENTO DE POZOS.
HANDOVER METHOD OF MOBILE TERMINAL IN USING EVDO SYSTEM
METHOD FOR FABRICATING NON-VOLATILE MEMORY UNIT DEVICE WITH METAL NANO PARTICLE
HEAT SINK AND METHOD OF MANUFACTURING THEREOF
SYSTEM AND METHOD FOR SAVING POWER OF THE MOBILE COMMUNICATION TERMINAL
APPARATUS AND METHOD FOR SCHEDULING DATA IN A COMMUNICATION SYSTEM
