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
DEVICE FOR TESTING THE ELECTRO-ACOUSTIC TRANSMISSION PROPERTIES OF TELEPHONE APPARATUS
摘要
申请公布号
EP0392166(A3)
申请公布日期
1992.07.29
申请号
EP19900103228
申请日期
1990.02.20
申请人
QUANTE AG
发明人
HEEDT, MICHAEL, DIPL.-ING.;BRUEHL, MICHAEL, DIPL.-ING.;APFEL, NORBERT, DIPL.-ING.
分类号
H04M1/24;H04R29/00;(IPC1-7):H04M1/24
主分类号
H04M1/24
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SYSTEME DE COMMANDE DE LEVEE DE FILS DE CHAINE D'UN METIER A TISSER
PROCESS FOR THE PREPARATION OF HYDROGEN-RICH GAS
Heat storage water tank
Method and means of tufting
Device for bending metal objects
Hydraulic control system for brake device
Mounting for detachably connecting wall panels and the like
Combination drip edge member and rake
Trolling device
Methods and apparatus for automatic jumper placement
Bath tubs
Steam turbine plant
Rose plant
Optically active cyclooctenyl ethyl alcohol
Merchandising package for containers and method of making
Apparatus for transmission of information by electrocutaneous stimuli
Petri dish
Method and apparatus for destroying organic matter to facilitate trace inorganic element analysis
Process for producing olefinic resin foams
Structural foam molding process