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 system
摘要
申请公布号
US1888985(A)
申请公布日期
1932.11.29
申请号
US19300428664
申请日期
1930.02.15
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
HERSHEY HARRY E.
分类号
H04Q9/16
主分类号
H04Q9/16
代理机构
代理人
主权项
地址
您可能感兴趣的专利
RECORDING AND REPRODUCING DEVICE
MESSAGE RERECORDING SYSTEM
SOLAR LIGHT COLLECTING DEVICE
REACTION VESSEL FOR ANAEROBIC BACTERIA
START BIT DETECTING CIRCUIT
POCKET TYPE ELECTRIC COMMUNICATION SYSTEM
WINDOW WASHER DEVICE FOR AUTOMOBILE
NIGHT SOIL-PURIFIER
MASTER CYLINDER
MAGNETIC RECORDING MEDIUM
REFRIGERATOR FOR WAGON
REPLENISHING METHOD FOR TONER
OPTICAL DEVICE OF COPYING MACHINE
METHOD OF COATING SEPARATOR ON POCKET TYPE CATHODE BOX EMPLOYED IN ELECTROLYTIC CELL
PHOTOSEMICONDUCTOR DEVICE
SPEAKER
INTERMITTENT TRANSFER EQUIPMENT FOR FILM-CARRIER
MAGNET ROLL FOR MAGNETIC BRUSH
WINDER FOR FILM
PLANAR SEMICONDUCTOR DEVICE
