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
Bailer
摘要
申请公布号
US2099877(A)
申请公布日期
1937.11.23
申请号
US19350051043
申请日期
1935.11.22
申请人
WESTALL EDWARD F
发明人
WESTALL EDWARD F.
分类号
E21B27/00
主分类号
E21B27/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
A mounting device
Portable medication radial dispensing apparatus
COMMUNICATION APPARATUS AND METHOD
DISPLAY DEVICE AND ELECTRONIC DEVICE
Two-cycle internal combustion engine and scavenging pump for use in the same
Fuel synthesis by electric barrier discharge process
OXIME DERIVATIVES AND AGRICULTURAL CHEMICALS CONTAINING THE SAME
System wide flow aggregate process
Game machines having programmable individual characteristics
Data receiving apparatus
Network peripheral server discovery method
Process for preparing emulsion
Wavelength division multiplexed system for optical access rings
一种从发酵液分离制备高纯度长链二羧酸及其酯的方法
Ink set having excellent color reproduction
LITHIUM-POLYMER TYPE BATTERY AND CONTROL SYSTEM
Digital signal decoding apparatus
Multiresolution transmission with multicarrier signals
Protective housing for optical devices with simplified electrical connection
CLIENT/SERVER COMMUNICATION SYSTEM
