Method of forming field structure for magnetic loudspeaker,申请号GB19660030009-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	Method of forming field structure for magnetic loudspeaker
摘要
申请公布号	GB1146721(A)	申请公布日期	1969.03.26
申请号	GB19660030009	申请日期	1966.07.04
申请人	ALDO LUDOVICO COEN	发明人
分类号	B21D22/02;B21D51/00;H04R9/02	主分类号	B21D22/02
代理机构		代理人
主权项
地址

您可能感兴趣的专利

DUAL INTERFACE CARD AND ITS MANUFACTURING METHOD

VENDING MACHINE OF WATER

EXTRACELLULAR ELECTRIC POTENTIAL MEASURING DEVICE AND ITS MANUFACTURING METHOD

PRIMER SET FOR DETECTING HUMAN ABC TRANSPORTER GENE AND DETECTION METHOD

PRIMER FOR DIAGNOSING LIPID METABOLISM ABNORMALITY AND NEW MEDIUM CHAIN FATTY ACID ACYL-COA SYNTHETASE AND GENE THEREFOR

CHIP TYPE OPTICAL SEMICONDUCTOR DEVICE

DETECTOR FOR DETECTING ROTATION ANGLE FOR SYNCHRONOUS ROTATING MACHINERY

EXHAUST EMISSION CONTROL DEVICE

METHOD FOR CATALYTICALLY REMOVING NITROGEN OXIDE AND APPARATUS THEREFOR

ELECTRICALLY CONDUCTIVE CELLULOSIC FILM AND ITS MANUFACTURING METHOD, OPTICAL ELEMENT AND IMAGE DISPLAY DEVICE

SEMICONDUCTOR DEVICE

DATA PROCESSING DEVICE

DEVICE, METHOD AND PROGRAM FOR DIVIDING SYMBOL STRING, AND RECORDING MEDIUM HAVING THE PROGRAM RECORDED THEREON

CHINESE KANJI CHARACTER INPUT UNIT, AND CHINESE KANJI CHARACTER INPUT METHOD

PERFORMANCE TRAINING DEVICE

HEAT INSULATING MATERIAL AND HEAT INSULATING RESIN COMPOSITION

RIDING-ON/OFF SUPPORT DEVICE FOR ELEVATOR ALSO SERVING AS WHEELCHAIR

SYSTEM FOR EVALUATING ENERGY-SAVING OF ELEVATOR