Automatic telephone system,申请号US19280292493-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	Automatic telephone system
摘要
申请公布号	US1769056(A)	申请公布日期	1930.07.01
申请号	US19280292493	申请日期	1928.07.13
申请人	AUTOMATIC ELECTRIC INC.	发明人	GILLINGS CHARLES
分类号	H04Q3/42	主分类号	H04Q3/42
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Inrichting voor het afzuigen van lucht, aansluitinrichting en werkwijze voor een dergelijke inrichting, gebouw voorzien van een dergelijke inrichting.

APPARATO DI PROPULSIONE DI TIPO RETRATTILE PER IMBARCAZIONE A VELA

PLASMA DISPLAY DEVICE AND METHOD OF DRIVING THE SAME

DISPOSITIVO UNIVERSALE PER IL SUPPORTO DI DISPLAY COME TELEVISORI A PARETE DEL TIPO PIATTI E ULTRAPIATTI.

IMPIANTO PILOTA PER IL TRATTAMENTO DI RIFIUTI E O SCARTI DI LAVORAZIONE PER PRODURRE CARBONI ATTIVI E GAS DI SINTESI

APPARECCHIATURA PER RILEVARE E CONTROLLARE LO SPESSORE DI PANNELLI,PARTICOLARMENTE DI MATERIALE INCOERENTE LEGNOSO PRESSATO

DISPOSITIVO DI ILLUMINAZIONE

CONFEZIONE PER ASCIUGAMANI MONOUSO IN CARTA

Devices using an expandable body with internal restraint for compressing cancellous bone

A method and related apparatus for cutting a product from a sheet material

Method for producing aqueous floor covering adhesives, emulsion produced from said method and use thereof

Data recording method and apparatus, and data reproducing method and apparatus

Composition for acceleration of wound and burn healing as well as a wound or burn dressing

Compositions and formulations for producing analgesia and for inhibiting progression of neuropathic pain disorders

Peer-to-peer email ip based payment processing an d management service and solution platform

Mounting structure for an electric switch

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE-BASED SECONDARY BATTERY, PRODUCTION METHOD THEREFOR AND NON-AQUEOUS ELECTROLYTE-BASED SECONDARY BATTERY USING THE SAME

ARTIFICIAL DIET FOR REARING SPODOPTERA EXIGUA

WOOD CHIP MAT HAVING SILK-PRINTING LAYER AND SLIP-RESISTANT FUNCTION AND PROCESS FOR PREPARING THE SAME

CONTENTS RECEIVING APPARATUS AND METHOD FOR CALCULATING CONTENTS USAGE SCORE THEREOF