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
Selective signaling apparatus
摘要
申请公布号
US1760478(A)
申请公布日期
1930.05.27
申请号
US19260120763
申请日期
1926.07.06
申请人
COLMAN HOWARD D
发明人
COLMAN HOWARD D.
分类号
H04L15/26
主分类号
H04L15/26
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DIAPHRAGM FOR LOUDSPEAKER
STATOR OF DYNAMOELECTRIC MACHINE AND ITS MANUFACTURING METHOD
SWITCHER
NOISE REDUCTION CIRCUIT FOR VIDEO SIGNAL
GRADATION PROCESSOR AND GRADATION PROCESSING METHOD OF COLOR IMAGE
IMAGE PROCESSOR
PICTURE PROCESSOR, PICTURE READ FORMING DEVICE AND PICTURE PROCESSING SYSTEM
FACSIMILE EQUIPMENT
EMERGENCY MESSAGE DEVICE
LEAD STRUCTURE FOR ELECTRONIC PART
SEMICONDUCTOR DEVICE AND MANUFACTURE
BATTERY-COOLING DEVICE
PICTURE PROCESSING DEVICE FOR CAR
COMPOSITE ELECTRONIC EQUIPMENT
METHOD AND DEVICE FOR CONTROLLING COOLING FAN IN INFORMATION EQUIPMENT
TRANSMISSION LINE DESNOWING RING
ELECTRONIC EQUIPMENT
VOICE REPRODUCING DEVICE AND RECORDING MEDIUM IN WHICH PROCESSING PROGRAM TO PERFORM REPRODUCTION PROCESSING OF VOICE IS RECORDED
PORTABLE ELECTRONIC EQUIPMENT
INFORMATION PROCESSOR