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
Film phonograph
摘要
申请公布号
US2193082(A)
申请公布日期
1940.03.12
申请号
US19380210591
申请日期
1938.05.28
申请人
RADIO CORPORATION OF AMERICA
发明人
UNDERHILL JOSEPH L.
分类号
G11B15/43
主分类号
G11B15/43
代理机构
代理人
主权项
地址
您可能感兴趣的专利
REFERENCE POSITION DETERMINING METHOD OF CHARACTER PATTERN
TEMPERATURE CONTROLLER
COLLIMATION OF SPEAKER
SOLID-STATE IMAGE PICKUP DEVICE
FILLER MEMBER FOR GAS-LIQUID CONTACT
APPARATUS FOR AERATING SEWAGE
METHOD OF MULTI-ACCESS
OPTICAL PICKUP
LEAD FRAME FOR SEMICONDUCTOR DEVICE
SOLID-STATE IMAGE PICKUP DEVICE
DETECTOR OF SLANTING OF COROTRON WIRE
SYNCHRONIZING CIRCUIT
DEVICE FOR FORMING PAPER-LIKE COLLECTION TO BE PACKED
DEVICE TO FIX BOTH ENDS OF LEADER TAPE TO REEL
DIGITAL COLOR ENCODER
PARTS SUPPLY DEVICE
MANUFACTURE OF MOS TYPE SEMICONDUCTOR DEVICE
PRODUCTION OF MATRIX DISPLAY PANEL
FM MODULATING CIRCUIT
SHEET HANDLING DEVICE
