Schaltung zur Frequenzwandlung mittels einer Doppelgitterroehre,申请号DE1926S077228D-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	Schaltung zur Frequenzwandlung mittels einer Doppelgitterroehre
摘要
申请公布号	DE540337(C)	申请公布日期	1931.12.12
申请号	DE1926S077228D	申请日期	1926.11.27
申请人	SOCIETE DES ETABLISSEMENTS DUCRETET	发明人
分类号	H03D7/10	主分类号	H03D7/10
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Dispositif régulateur pour commande à plusieurs moteurs, notamment de machines à papier

Procédé et appareil de prise de vues cinématographiques

Ustensile de nettoyage à main, en faisceaux de fibres assemblés, destiné particulièrement aux plaques de foyers de cuisine

Improvements in methods of increasing the resistance to corrosion of steel and cast iron

Improved connecting means for removably securing pads in the pockets of foot-arch supports, or in the pockets of bands, or other appliances for protecting bunions, cornsor wounds

Improvements in or relating to methods of and apparatus for supplying tobacco to a cigarette making machine

Improvements in or relating to shuttering for concrete kerbing

Improvements in curtain rail supports

Apparatus for the exploration of objects by means of light for television and the like

Improvements in fire alarm systems

Improvements relating to the freezing of food products

Method of producing a tubular connection for stranded conductors, especially cables

Weed destroying appliance

Improvements relating to trailer couplings, particularly for motor vehicles

Method of producing caffeine-free coffee and theine-free tea

Improvements in and relating to railway sleepers and rail joints

An improvements in or relating to rotary fabric pressing machines

Improvements in furnace walls

Clamp and guide for fitting scarfed piston rings

Means for driving screw piles, cylinders and the like