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
Visible automatic announcer
摘要
申请公布号
US1999803(A)
申请公布日期
1935.04.30
申请号
US19320628751
申请日期
1932.08.13
申请人
R. E. MILES, JR.
发明人
CARNEY ARTHUR T.
分类号
B61L25/00
主分类号
B61L25/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Thin film composite membranes incorporating carbon nanotubes
Water filter unit
Feed delivery system for a solid-liquid separation vessel
Hydrogen gas generator
Making ductility-enhanced magnesium alloy sheet materials
Corrosion product chemical dissolution process
Apparatus for the preparation of film
Weather-resistant dye and use thereof
Waterless humidifier for residential and commercial furnaces
Dust collecting apparatus of vacuum cleaner having function of removing dust detached from filter
Spinal implant having a transverse aperture
Support structure implant for a bone cavity
Cardiac valve procedure methods and devices
Semiconductor chip and semiconductor package with stack chip structure
Semiconductor device including gate electrode having a laminate structure and a plug electrically connected thereto
Photoelectric conversion device and manufacturing method thereof
Cut-very-last dual-EPI flow
Extreme ultraviolet masks having annealed light-absorptive borders and associated fabrication methods
Echogram detection of skin conditions
Substrate inductive devices and methods
