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
CONTROL SYSTEM FOR A DRILLING APPARATUS
摘要
申请公布号
GB1481541(A)
申请公布日期
1977.08.03
申请号
GB19740040972
申请日期
1974.09.19
申请人
CONTINENTAL OIL CO
发明人
分类号
E21B4/18;E21B4/20;E21B7/04;E21B7/06;E21B7/08;E21B23/04;(IPC1-7):E21B7/08
主分类号
E21B4/18
代理机构
代理人
主权项
地址
您可能感兴趣的专利
INTELLIGENT FIRE DETECTING SYSTEM FOR DUCT FIRE
A manufacturing methode for nanoliposome liquid feedstuffs and liquid feedstuffs manufactured by the same
FUNCTIONAL INNER LAYER STRUCTURE FOR HELMENT
GUIGOLI
CONTROL DEVICE AND CONTROL METHOD FOR THICK PLATE MULTI-ROLLING
A THERMOSETTABLE COMPOSITION CONTAINING A COMBINATION OF AN AMPHIPHILIC BLOCK COPOLYMER AND A POLYOL AND A THERMOSET PRODUCT THEREFROM
CIRCUIT PATTERN INSPECTION DEVICE AND CIRCUIT PATTERN INSPECTION METHOD THEREOF
Wireless Power Transmission Method
IMPEDANCE ADJUSTMENT CIRCUIT FOR ADJUSTING PLANAR ANTENNAS
PROCESSES AND HYDROCARBON PROCESSING APPARATUSES FOR PREPARING MONO-OLEFINS
Composition comprising extract of Eupatorium spp. as an effective component for prevention or treatment of obesity and metabolic bone disease
APPARATUS AND METHOD FOR DETERMINING BLOW DIRECTION IN PORTABLE TERMINAL
Imaging apparatus and control method thereof
Apparatus for processing digital image and method for controlling thereof
SUBSTRATE PROCESSING SYSTEM
- Process for manufacturing NN-dialkyl lactamide
NANOSTRUCTURES HAVING HIGH PERFORMANCE THERMOELECTRIC PROPERTIES
Dual Plug Beverage Intake Tube of Gas Mask
/ Methods For Encoding/Decoding High Definition Image And Apparatuses For Performing The Same
DELAY LOCKED LOOP CIRCUIT AND METHOD OF OPERATING DELAY LOCKED LOOP CIRCUIT