Perfectionnements aux installations téléphoniques à haut-parleurs,申请号FRD946069-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Perfectionnements aux installations téléphoniques à haut-parleurs
摘要
申请公布号	FR946069(A)	申请公布日期	1949.05.23
申请号	FRD946069	申请日期	1947.05.03
申请人		发明人	LEVY JACQUES
分类号	H04B3/20;H04M9/00;H04M9/08	主分类号	H04B3/20
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Analogifremgangsmåde til fremstilling af benzo(5,6)cyclohepta(1,2-b)pyridiner

Fremgangsmåte for drift av en trykksvingnings-gasseparator, samt trykksvingnings-gasseparator innrettet til å arbeide i henhold til fremgangsmåten

Flavouring agent

Processing sulphur-containing residues and fly ash into cured granules making cementless mortar and making a building block of such granules and mortar

Detergent composition and process for its production.

Emne og palleterbar konstruksjon for fastholding og griping av lag av beholdere, samt fremgangsmåte og anordning for emballering med et slikt emne

Forankringsøje til pressenninger og lignende overdækninger.

Transportaordning

Universal zero-headspace extractor vessel and rotator.

Collapsible container

Simulated solid fuel gas fires

Injection part for die-casting machines

Process for simultaneously effecting desulfurization and denitration within furnace

Single Bed Pressure Swing Adsorption System and Process

Broadband Phased Array Transducer Design With Frequency Controlled Two Dimension Capability and Methods for Manufacture Thereof

Bran-Removing Perforated Cylindrical Body of Abrasive Type Grain Milling Machine

DISPOSITIVO PER IL RECUPERO DI CALORE ENDOGENO PRODOTTO DA FIAMME A GAS O DA FORNELLI ELETTRICI.

Sewage treatment