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
Manhole step
摘要
申请公布号
US2285004(A)
申请公布日期
1942.06.02
申请号
US19390259977
申请日期
1939.03.06
申请人
BARRIBALL ROBERT H
发明人
BARRIBALL ROBERT H.
分类号
E06C9/04
主分类号
E06C9/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Handoff of a mobile station between packet-switched and circuit-switched wireless domains
Carrying case with multi-frequency shielding
Flow diversion apparatuses and methods
Variable stopwrite threshold with variable smoothing factor
Vertical microcavity with curved surface defects
Image reading apparatus and driving apparatus
Digital image printing system, control method therefor, printing device, control method therefor, and computer product
System and method for creating a URL shortcut name corresponding to a web page and printing the web page with the shortcut name
Systems and methods for extending imaging depth range of optical coherence tomography through optical sub-sampling
Multi-function spectrometer-on-chip with a single detector array
Electronic apparatus equipped with function for notifying acceptance of operation, method of controlling electronic apparatus, and storage medium
Image processing device, image processing method, and program
Machine vision inspection system comprising two cameras having a rotational offset
Stereoscopic image capture
Method and apparatus providing synchronization and control for server-based multi-screen videoconferencing
Inter-processor communication techniques in a multiple-processor computing platform
System and method for rocking finger and static finger detection on an input device
Handheld electronic device having a slidable keyboard
Pixel and organic light emitting display using the same
Low power location-tracking device with combined short-range and wide-area wireless and location capabilities
