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
BAR VENT FOR DOWNHOLE TOOL
摘要
申请公布号
EP0233750(B1)
申请公布日期
1991.05.15
申请号
EP19870301145
申请日期
1987.02.10
申请人
HALLIBURTON COMPANY
发明人
WESSON, DAVID S.;WALL, STANLEY JAY;HALES, JOHN H.
分类号
E21B34/10;E21B34/14;E21B43/116;E21B43/119
主分类号
E21B34/10
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Temperature protective switch
DRIP CHAMBER WITH HYDROPHOBIC INTERIOR SURFACE
IMMERSION COMMUNICATION CLIENT AND SERVER, AND METHOD FOR OBTAINING CONTENT VIEW
MULTI-LAYER VIDEO CODING METHOD FOR RANDOM ACCESS AND DEVICE THEREFOR, AND MULTI-LAYER VIDEO DECODING METHOD FOR RANDOM ACCESS AND DEVICE THEREFOR
CYBER SECURITY
THERMALLY MODULATED VARIABLE RESTRICTOR
PROFILING CODE EXECUTION
FLUID SANITIZATION ASSEMBLY AND RELATED METHODS OF USE
METAL CLOSURE AND SEAL COMBINATION FOR MAINTAINING THE SHAPE OF A PLASTIC CONTAINER NECK
VEHICLE BRAKING SYSTEM WITH ELECTRIC BRAKE BOOSTER
4-AMINO-6-(HETEROCYCLIC)PICOLINATES AND 6-AMINO-2-(HETEROCYCLIC)PYRIMIDINE-4-CARBOXYLATES AND THEIR USE AS HERBICIDES
BEVEL MECHANISM FOR A POWER SAW
SKIN TREATMENT APPARATUS
GAS BARRIER ENHANCING ADDITIVES AND METHODS
PRODUCT AND METHOD FOR IMPROVING BIOAVAILABILITY OF THERAPEUTIC COMPOUNDS
MULTI-SENSOR SURVEILLANCE SYSTEM FOR MONITORING A SPACE AND DETECTION OF OBJECTS
AIRCRAFT BASED WIRELESS COMMUNICATION SYSTEM
DIRECT ELECTROLYTE GELLING VIA BATTERY SEPARATOR COMPOSITION AND STRUCTURE
LOW-LATENCY TOUCH SENSITIVE DEVICE
SYSTEMS AND METHODS FOR ISOLATING NUCLEIC ACIDS
