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
Fernsprechschaltung mit Lautsprechern
摘要
申请公布号
DE828710(C)
申请公布日期
1952.01.21
申请号
DE1948P026631D
申请日期
1948.12.24
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
LATIMER KENNERTH E.
分类号
H04M9/08;H04R3/08
主分类号
H04M9/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
GARGEFAESS
REMOVING OR PREVENTING METHOD OF CHOKING OF THE DEPTH AERATORS
Scissor-type lifting table
Power steering, in particular for motor vehicles
Garniture for a strand machine in the tobacco processing industry
Table
Fine grinding tool for machining workpieces of metal, glass or ceramic
Clock generation in a broadband multiplexer or demultiplexer
Exterior car mirror
Stockpile clearing apparatus
Map, especially city street plan
Method and apparatus for the die-casting of molten metal
Windscreen for motor vehicles, and process for the manufacture thereof
Thermal insulation of pipelines
Method for transmitting teletext and programme contribution identification signals in a television signal
Grab crane apparatus for installation in agricultural buildings
Surface coating
Oscillating drive system
Brake unit for an audio-tape recorder, especially for a cassette recorder
Belt band conveyor
