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
Pressure gradient responsive microphone
摘要
申请公布号
US2699473(A)
申请公布日期
1955.01.11
申请号
US19500195204
申请日期
1950.11.13
申请人
RADIO CORPORATION OF AMERICA
发明人
KETTLER ALFRED H.;HAWLEY MONES E.
分类号
H04R1/38
主分类号
H04R1/38
代理机构
代理人
主权项
地址
您可能感兴趣的专利
FREMGANGSMAATE FOR REGENERERING AV EN IKKE-SUR KATALYSATORANVENDT VED DEHYDROGENERING AV LETTE HYDROKARBONER
SURFACE AERATOR
VALVULA DE FUNCIONAMENTO PARA PANELA DE PRESSAO AUTOMATICA
PROCESSO E APARELHO PARA PROCESSAR UM CENTRO NUMERO DE CONDUTORES DE FIO
PAPEL SENSIBILIZADO A LA RADIACION.
PROCESSO PARA O TRATAMENTO SUPERFICIAL DE PECAS CERAMICAS POR MEIO DE UM LASER
MULTIPURPOSE ENGINE OIL
MANUFACTURING METHOD FOR SINTERED DIAMOND
ANTICORROSIVE PAINT RESISTANT TO HIGH TEMPERATURES
MILKING MACHINE
THIN FILM DEPOSITING APPARATUS
DERIVADOS DE ACETOXIMILBEMICINA 13-(TIOSUBSTITUIDA), SU PREPARACION Y SUS USOS AEROQUIMICOS.
Process for manufacturing luminous announcements
PROCESS FOR THE RECOVERY OF GALLIUM FROM BASIC SOLUTION
FORMATION OF INSULATING FILM ON GRAIN-ORIENTED MAGNETIC STEEL SHEET EXCELLENT IN WORKABILITY OF IRON CORE AND HEAT RESISTANCE
LINEAR MOTOR AND XY DRIVE TABLE EMPLOYING LINEAR MOTOR
LINEAR ACTUATOR
MANUFACTURE OF PERMANENT MAGNET ROTOR
CONNECTING DEVICE FOR AUDIO EQUIPMENT OR VIDEO EQUIPMENT
TERMINAL EQUIPMENT FOR HEAT RAY SENSOR IN REMOTE MONITORING CONTROL SYSTEM
