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
Système de commutation pour communication téléphonique
摘要
申请公布号
FR1245100(A)
申请公布日期
1960.11.04
申请号
FR19590811569
申请日期
1959.11.28
申请人
GENERAL TELEPHONE LABORATORIES, INCORPORATED
发明人
分类号
H04Q3/52
主分类号
H04Q3/52
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Gun charger
Collapsible crib for children
Bobines de self-inductance réglable
Improvements in and relating to rotary joints
Improvements relating to the suspension of paper bags or sheets
Fungicidal compositions
Improvements in or relating to transistor amplifiers
Improvements in or relating to phase-measuring and synchronising apparatus
Improvements in or relating to clothes washing machines
Improvements relating to the production of filament and film-forming polyethylene terephthalates
A sealing or piston ring
Improvements in or relating to cationic surface-active bitumen additives
Shell mould, hollow core, or thin-walled moulding and methods for the production thereof
Improvements relating to four-stroke internal combustion engines and a method of operation therefor
NUEVO SISTEMA DE PLEGADO EN ENCUADERNACIONES DE REGISTRO
Reduction of epoxy ketones to 16-a,20-a-dihydroxy-steroids
Improvements in or relating to loom pickers
Improvements in or relating to measuring instruments
Improvements in or relating to resolution of dl-pyrrolidonecarboxylic acid
Improvements relating to circuit arrangements for the generation of electric pulses
