Permanent magnet electrodynamic loud-speaker,申请号US19470738894-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	Permanent magnet electrodynamic loud-speaker
摘要
申请公布号	US2524836(A)	申请公布日期	1950.10.10
申请号	US19470738894	申请日期	1947.04.02
申请人	THE ROLA COMPANY, INC.	发明人	RUSSELL EARL L.
分类号	H04R9/06	主分类号	H04R9/06
代理机构		代理人
主权项
地址

您可能感兴趣的专利

CONTACT PROBE AND METHOD FOR MANUFACTURING THE SAME

OPTICALLY TRIGGERED ELECTRO-STATIC DISCHARGE PROTECTION CIRCUIT

SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREFOR

Medical closure device

Method for Generating An Electronic Address Database, Method For Searching An Electronic Address Database And Navigation Device With An Electronic Address Database

COMBINATIONS COMPRISING BCR-ABL/C-KIT/PDGF-R TK INHIBITORS FOR TREATING CANCER

SURFACE-MOUNTED CIRCUIT BOARD MODULE AND PROCESS FOR FABRICATING THE SAME

FORWARDING AND FALL BACK MONITORING IN AN ALARM SYSTEM

HANDS FREE OPERATION ADHESIVE TAPE DISPENSER

10G XFP compliant PCB

COMPUTER PROGRAM INSTRUCTION ARCHITECTURE, SYSTEM AND PROCESS USING PARTIAL ORDERING FOR ADAPTIVE RESPONSE TO MEMORY LATENCIES

Non-Standard Amino Acid Conjugates of Amphetamine and Processes for Making and Using the Same

Fungicidal Mixtres Based On 3-Monosubstituted N-Bipenyl-Pyrazolecarboxamides

OPTICAL GAS DETECTION

Insecticide Compositions

Treatment methods and compositions for lung cancer, adenocarcinoma, and other medical conditions

Composition for producing organic insulator comprising an organic-inorganic metal hybrid material

CROSS-LINKED THERMOPLASTIC POLYURETHANE/POLYUREA AND METHOD OF MAKING SAME

AIRCRAFT FILTER DEVICE WITH THE FILTER BEING STOPPED IN ROTATION