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
Coupling device
摘要
申请公布号
US1940769(A)
申请公布日期
1933.12.26
申请号
US19300494793
申请日期
1930.11.10
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
POTTER RALPH K.
分类号
H03H7/00
主分类号
H03H7/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Diamond-containing abrasive body and process for the preparation thereof
Anti-fouling caster
Electric windings
Improvements in or relating to encapsulated electrolytic capacitors
Electromagnetic sealed relay
Improvements in or relating to automatic gear-shift mechanisms in vehicles
Improvements in ion exchange electrodes for electro-chemical measurements
Brushless a.c. power generator
Stabilized electrical control circuit
Minimum voltage three-phase relay
Improvements in and relating to tools for changing needles for taking liquid, and in particular radio-active liquid samples
Vehicle door latch
Improvements in or relating to precipitation processes and apparatus
Production of acrylic coatings
Combined control and regulating apparatus
Method and means for driving rotatably operating boring machines for boring underground tunnels
Spring-loaded valves
Pigment produced by surface treatment of titanium or a titanium alloy
Insulated highway drainage system
Gas turbine engine bladed rotors
