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
Nachrichtenuebertragungsanlage mit Wechselsprech-Lautsprechverkehr
摘要
申请公布号
DE868923(C)
申请公布日期
1953.03.02
申请号
DE1950L003375
申请日期
1950.08.19
申请人
NEUMANN ERICH
发明人
NEUMANN ERICH
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
A SELECTIVE PLATING METHOD OF MANUFACTURING PLATED-THROUGH-HOLE PRINTED CIRCUIT BOARDS WITH SOLDER MASK ON BARE COPPER CONDUCTORS AND A PRINTED CIRCUIT BOARD MANUFACTURED THEREBY
A SELECTIVE PLATING METHOD OF MANUFACTURING PLATED-THROUGH-HOLE PRINTED CIRCUIT BOARDS WITH SOLDER MASK ON BARE COPPER CONDUCTORS AND A PRINTED CIRCUIT BOARD MANUFACTURED THEREBY
A METHOD OF MAKING PLATED-THROUGH-HOLE PRINTED CIRCUIT BOARD AND A PRINTED CIRCUIT BOARD MANUFACTURED THEREBY
A PROCESS FOR PRODUCING A NOVEL PROSTAGLANDIN DERIVATIVES OF A CONJUGATE OF PROSTAGLANDIN STEROID HORMONE
SIGNAL PROCESSING METHOD
BURY OF TRACTION TUBE
OPTICALLY ACTIVE ALPHA-CYANO-3-PHENOXYBENZYL 2-(4-CHLOROPHENYL)-ISOVALERATE
PREPARATION OF ETHYL 2,6,2'-TRIISOCYANATOHEXANOATE
STABILIZING METHOD OF METHACRYLIC ACID AGAINST HEAT
RECORDE
ELECTROLYTIC CONDENSER
SPEAKER GRILL FOR STREAMLINE LIGHT ROD MOUNTED ON AUTOMOTIVE ROOF
HIGH SPEED FIGURE DISPLAY UNIT
METHOD OF PLATING PRINTED BOARD PLUG UNIT
METHOD OF AND APPARATUS FOR PUSHING UP OR DOWN MAIN STEEL TOWER MATERIAL FOR POWER TRANSMISSION
BUILDING PANEL
LAMINATED SOUND-ISOLATED WALL
HEAT CONDUCTING DEVICE
MOISTURE CONDITIONING GRAIN DRYING METHOD
CONTROL SYSTEM OF FLOOR HEATING
