Telephone system,申请号US19290346826-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	Telephone system
摘要
申请公布号	US1747219(A)	申请公布日期	1930.02.18
申请号	US19290346826	申请日期	1929.03.14
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	BOWNE LANGFORD J.;KOECHLING CHARLES D.
分类号	H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Überwachungsverfahren und Überwachungseinrichtung zum Überwachen einer Drehzahl einer Rotationswelle in einer Werkzeugmaschine, und Werkzeugmaschine

Verfahren und Vorrichtung zur Bildstabilisierung in einem optischen Beobachtungs- oder Messgerät

FITTED MATTRESS COVER

PUSH-PUSH EJECT DISK DRIVE CHASSIS

NOVEL INSULATED GATE BIPOLAR TRANSISTOR BACK STRUCTURE AND PREPARATION METHOD THEREOF

TRAMPOLINE ASSEMBLY AND RELATED METHODS

3-DIMENSIONAL IMAGING USING MICROBUBBLES

PROTECTION MATERIAL FOR MEDICAL EQUIPMENT AND MATERIALS, AND OBJECT HAVING MEDICAL EQUIPMENT AND MATERIALS CONTAINED THEREIN

SOLUTION FILLING MECHANISM

FILM-FORMING FORMULATIONS FOR SUBSTRATE PRINTING

DRUG DELIVERY SYSTEMS AND APPLICATIONS

DRIVING LANE EVALUATION APPARATUS, DRIVING LANE EVALUATION METHOD, AND DRIVING LANE EVALUATION COMPUTER PROGRAM

INKJET UNIT AND INKJET DEVICE

SEQUENCE PROGRAM CREATION DEVICE

OPTICAL ELEMENT AND PRODUCTION METHOD THEREFOR

RADIATION PROTECTIVE FABRIC

THERMAL SPRAY MATERIAL, THERMAL SPRAY COATING FILM, AND STRUCTURE

AUCTION METHOD AND AUCTION SERVER