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
Alternative trunking in telephone systems controlled by overflow trunks and common directors
摘要
申请公布号
US2857467(A)
申请公布日期
1958.10.21
申请号
US19540427061
申请日期
1954.05.03
申请人
GENERAL TELEPHONE LABORATORIES, INCORPORATED
发明人
MOLNAR IMRE
分类号
H04M7/06;H04Q3/00
主分类号
H04M7/06
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD OF MANUFACTURING SEMICONDUCTOR-DEVICE ELEMENT
IMAGE PROCESSING APPARATUS PERFORMING SPECTRAL CHARACTERISTIC ESTIMATION
INTRAOCULAR DISTANCE MEASURING APPARATUS BY MULTIPLE WAVEFRONT OPTICAL COHERENCE
LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD OF THE SAME
CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION METHOD, CONTENT PROCESSING APPARATUS AND METHOD, CONTENT PROVIDING APPARATUS AND METHOD, RECORDING MEDIUM, AND PROGRAM
CONTENT REPRODUCTION CONTROL METHOD AND MOBILE COMMUNICATION TERMINAL
MOBILE PHONE TERMINAL
SEMICONDUCTOR DEVICE
SEMICONDUCTOR DEVICE AND WIRE BONDING METHOD
IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING IMAGE FORMING APPARATUS
KINESITHERAPY IMPLEMENT
BELT DRIVING DEVICE
CELL BATTERY PACK AND METHOD OF MANUFACTURE FOR CELL BATTERY PACK
CEILING SUSPENSION TYPE AIR CONDITIONER
AIR CONDITIONING SYSTEM
BEARING DEVICE
MARK FOR POSITION DETECTION, METHOD AND DEVICE FOR MARK DETECTION, AND PROGRAM FOR SAME
SOUND FIELD REPRODUCING APPARATUS AND SOUND FIELD SPACE REPRODUCING SYSTEM
VIDEO CONFERENCE SYSTEM
OPTICAL PICKUP DEVICE AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE
