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
Electrical brush contact device
摘要
申请公布号
US2581266(A)
申请公布日期
1952.01.01
申请号
US19460679111
申请日期
1946.06.25
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
LUM GEORGE RENWICK
分类号
H01C10/30
主分类号
H01C10/30
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Housings for Audio/Video Units
Electrolytic Cells
SWITCHES FOR ELECTRICAL BALANCES
Sensing tilt
Doppler Speed-log Apparatus
Ultrasonic Imaging Devices
TAPE TRANSPORT MECHANISMS FOR RECORDING AND/OR REPRODUCING APPARATUS
Heat-insulation jacket panel
Rotary Positive-displacement Fluid-machines
Tunnel linings
Portable building unit
Forming oxide layer on alloy steels
Process for the manufacture of hybrid cells producing an antibody in which methylcellulose is used in the selection of hydrides
Operating device for control cable and instrument panels incorporating such a device
ROTARY POSITIVE-DISPLACEMENT FLUIDMACHINES
Circumferentially Grooved Turbine Shroud
TWO-FOUR WHEEL DRIVE MECHANISM
Attaching sheet material to a surface
Segmental pulpstone and abrasive segments
SLIMMING AND ANTI-CELLULITIC COMPOSITIONS BASED ON PLANT EXTRACTS
