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
WELL PACKER AND SEALING ELEMENTS THEREFOR
摘要
申请公布号
US3554280(A)
申请公布日期
1971.01.12
申请号
USD3554280
申请日期
1969.01.21
申请人
DRESSER INDUSTRIES INC.
发明人
ANDREW J. TUCKER
分类号
E21B33/128;(IPC1-7):E21B23/00
主分类号
E21B33/128
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Lens cap for optical module, optical module, and method for manufacturing lens cap for optical module
LED tube with light reflective face
System for measuring a time offset and method of measuring a time offset
Induction logging signals using complex waveforms and directional guidance antenna systems
Radiographic image capture device, method and program storage medium
Positioning system and method
Radar system and methods of controlling a radar system and the provision of a range-doppler target image signature
Monostatic multi-beam radar sensor for motor vehicles
Navigation system and method
Magnetic shield, program, and selection method
Hall effect measurement instrument with temperature compensation
Scanning probe microscope and measurement method using same
Needle interface for fluid connections
Automated wood species identification
Methods and systems for analyzing samples
Analyzing tissue morphology in three dimensions
Measurement and uses of oxidative status
Wireless surface acoustic wave corrosion sensor and interrogation system for concrete structures
Sample pretreatment and extraction
System and method for air sampling in controlled environments
