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
Audiphone unit
摘要
申请公布号
US1826797(A)
申请公布日期
1931.10.13
申请号
US19290409789
申请日期
1929.11.26
申请人
LEACH HENRY G;STOLZ ERNEST H
发明人
LEACH HENRY G.;STOLZ ERNEST H.
分类号
H04R25/04
主分类号
H04R25/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Method and system for providing a write pole in an energy assisted magnetic recording disk drive
Fall detection device, magnetic disk device, and portable electronic apparatus
Observable centrifugal apparatus and observation apparatus
Domestic viewing panel unit
Providing updated versions of printed documents from two-dimensional barcodes associated with the updated versions
Image processing apparatus, image processing process and program
Image forming apparatus with vibration detection and control
Internal inspection system and method
Method and apparatus for detecting colored foreign particles in quartz powder material
Liquid crystal display device
Diffractive display device, finder device and camera
Apparatus and method of displaying an image
Dithered focus evaluation
Remote status monitor for high speed video camera
MOS sensor and drive method thereof
Image processing apparatus and image processing apparatus control method
Composition determining apparatus, composition determining method, and program
Image forming apparatus and method of displaying multilingual keyboard using the same
Liquid crystal display and driving method thereof
Display device, electronic device, and driving method
