Acoustic filter for telephone receivers,申请号US19520277208-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	Acoustic filter for telephone receivers
摘要
申请公布号	US2697761(A)	申请公布日期	1954.12.21
申请号	US19520277208	申请日期	1952.03.18
申请人	BODINE JR ALBERT G	发明人	JR. ALBERT G. BODINE,
分类号	H04R1/22	主分类号	H04R1/22
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Device for nondestructive testing of pipes

Transducer arrangements for ultrasonic surgical instruments

Light emitting diode and light source module incorporating the same

Boundary acoustic wave device

Method and apparatus for conversion of heat to electrical energy using a new thermodynamic cycle

LED device with simultaneous open and short detection function and method thereof

Stator of motor and washing machine having the same

3-phase high-power UPS

Power generating system

Method for manufacturing a semiconductor device having a silicide region comprised of a silicide of a nickel alloy

Magnetically actuated reciprocating motor and process using reverse magnetic switching

Integrated circuit packaging system with interconnect and method of manufacture thereof

Electromechanical devices having support structures

Process for manufacturing MEMS devices having buried cavities and MEMS device obtained thereby

disposição construtiva introduzida em apoio de bicicletas em geral

luminária para captação e armazenamento de luz solar conjugada com iluminação artificial elétrica através led's para interiores

dispositivo para união em ángulo de perfis tubulares

passadeira para correr

dispositivo aplicado em chuveiros e similares

disposição construtiva aplicada em carregador