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
CA426770(A)
申请公布日期
1945.04.10
申请号
CAD426770
申请日期
申请人
BELL TELEPHONE LABORATORIES;WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
EDSON LOCKWOOD ERWIN;ALOYSIUS JOHN BUSCH
分类号
主分类号
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus
METHOD FOR OPERATING NON-VOLATILE MEMORY WITH SYMMETRICAL DUAL-CHANNELS
Damped spacer articles and disk drive assemblies containing damped spacer articles
LIQUID CONTAINER, METHOD OF MANUFACTURING THE CONTAINER, PACKAGE OF THE CONTAINER, INK JET HEAD CARTRIDGE IN WHICH THE CONTAINER AND A RECORDING HEAD THE MADE INTEGRAL WITH EACH OTHER, AND LIQUID DISCHARGE RECORDING APPARATUS
Magnetic resonance imaging receiver/transmitter coils
Method for introducing additives
Power washer wand
Electrochemical sensor devices and methods for fast, reliable, and sensitive detection and quantitation of analytes
Methods and compositions for performing molecular separations
Method and apparatus for securing a shopping cart
Methods and apparatus for completing wells in unconsolidated subterranean zones
Semiconductor memory device and method for manufacturing the same
Film forming device
Filtering deep fryer for household use
Method for continuously cutting away pieces from a continuously moving endless material and apparatus for performing same
Method and apparatus for preparing custom-fitted clothing
Optically correct and clear eyeshields
Bath tab with built-in illumination device
吸排油烟机（凸面二）
按摩棒
