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 TOOL POSITION INDICATOR
摘要
申请公布号
US3430712(A)
申请公布日期
1969.03.04
申请号
USD3430712
申请日期
1967.06.29
申请人
SCHLUMBERGER TECHNOLOGY CORP.
发明人
JOHN A. STAFFORD
分类号
E21B47/12;E21B49/06;(IPC1-7):E21B41/00;E21B49/02
主分类号
E21B47/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Rotating base with pull-out system
Collar apparatus for retaining a hot or cold pack insert
Anthracycline compound
HIGH-FREQUENCY INDUCTION HEATING COIL FOR FZ AND PRODUCTION OF SEMICONDUCTOR SINGLE CRYSTAL USING THE SAME
PRODUCTION OF HYDROGEN-SEPARATING MEMBRANE
METHOD FOR MEASURING WELDING ELECTRIC POWER OF HIGH-FREQUENCY WELDING EQUIPMENT
CASTING METHOD FOR NONFERROUS ALLOY
CATERPILLAR TYPE CONTINUOUS CASTING MACHINE
MANUFACTURE OF CORE FOR HIGH PRESSURE CASTING
COMPONENT FOR COKING CASTING SAND
MANUFACTURE OF WATER SOLUBLE MOLD
FORGING METHOD AND ITS DEVICE
CLOCK FRAME
CONTROLLER FOR STRAIGHTENING MACHINE
METHOD FOR COLD ROLLING OF TITANIUM SHEET
REMOVAL OF TRIMETHYLAMINES
ROLLING DEVICE EQUIPPED WITH PUSH-OUT MECHANISM FOR COLUMNAR FRAME
CATERPILLAR TYPE CONTINUOUS CASTING MACHINE
METHOD FOR COLD ROLLING OF TITANIUM AND TITANIUM ALLOY SHEET
ROLL FOR COLD ROLLING