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
Telephone system
摘要
申请公布号
US1932235(A)
申请公布日期
1933.10.24
申请号
US19310550436
申请日期
1931.07.13
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
SMITH HOWARD H.;WICKS JOHN
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
COOLING DEVICE, VEHICLE PROVIDED WITH SAME, AND CONTROL METHOD FOR COOLING DEVICE
SYSTEM FOR INSERTING AN INTRAOCULAR LENS
Resistive random access memory and method of fabricating the same
POWER CONVERSION DEVICE
ORGANIC LIGHT-EMITTING DEVICE INCLUDING FLEXIBLE SUBSTRATE, AND METHOD FOR MANUFACTURING SAME
THE N-DOMAIN OF CARCINOEMBRYONIC ANTIGEN AND COMPOSITIONS, METHODS AND USES THEREOF
SYNCHRONIZATION APPARATUS, SYNCHRONIZATION SYSTEM, WIRELESS COMMUNICATION APPARATUS AND SYNCHRONIZATION METHOD
A COATING COMPOSITION AND ARTICLES MADE THEREFROM
OPTICAL NETWORK ELEMENT, ELECTRIC NETWORK ELEMENT AND SIGNALING ESTABLISHMENT METHOD WHEN ELECTRIC RELAY IS IN ELECTRIC NETWORK ELEMENT
SAFETY LOCK
Impulse duty cycle valves
ELECTRONIC COMPONENT HOUSING PACKAGE AND ELECTRONIC DEVICE
PACKAGING MATERIAL FOR COLD FORMING AND PRESS-THROUGH PACK FORMED USING SAME
PHOTODETECTOR CIRCUIT
METHOD AND DEVICE FOR DETERMINING MOTION VECTOR FOR VIDEO CODING OR VIDEO DECODING
METHOD FOR PRODUCING A FOOD PRODUCT BASED ON EGG WHITE
ELECTROMAGNETIC ROTATING DEVICE AND VACUUM PUMP EQUIPPED WITH ELECTROMAGNETIC ROTATING DEVICE
TRACKING DEVICE COMPRISING A RECEIVING STRUCTURE WHICH CAN BE ADJUSTED ABOUT AT LEAST ONE AXIS, FOR MOUNTING AT LEAST ONE ELEMENT THAT IS SENSITIVE TO ELECTROMAGNETIC WAVES AND HAS A PREFERENTIAL RADIATION DIRECTION
Method for repairing an electric heating element of a wind energy plant rotor blade
Method and system of dynamically charging electric vehicle
