首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
摘要
申请公布号
JPH0178485(U)
申请公布日期
1989.05.26
申请号
JP19870174562U
申请日期
1987.11.16
申请人
发明人
分类号
H04R1/00;A63B33/00;H04R1/44;(IPC1-7):H04R1/00
主分类号
H04R1/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Doppler shift compensation apparatus
Electronic ballast with lamp current correction circuit
Dye forming composition and detection of hydrogen peroxide therewith
Production of microstructure elements
Holster lock
Roll-resistant tennis ball can and lid
Pressure controlled cryopump regeneration method and system
Washing machine water discharge handling system
Tamper resistant collapsible container
Plating method and method for producing a multi-layered printed wiring board using the same
Electrical connector for a corrugated coaxial cable
Optical Film
Device for electrical and/or electronic telephone circuits, designed to limit the power dissipated within them
Method and system for detecting at a selected station an alerting signal in the presence of speech
Acoustically monitored site surveillance and security system for ATM machines and other facilities
Random access memory with apparatus for reducing power consumption
Display apparatus with a variable aperture stop means on each side of the modulator
Circuit for switching signal processing circuits
Voltage to current converter with extended dynamic range
DC compound motor having an auxiliary generator which supplies power for shunt field winding excitation