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
摘要
申请公布号
FR2035241(A5)
申请公布日期
1970.12.18
申请号
FR19700004533
申请日期
1970.02.09
申请人
ESSO RESEARCH
发明人
分类号
E21B43/01;F16L1/15;(IPC1-7):E02D29/00;E21B43/00
主分类号
E21B43/01
代理机构
代理人
主权项
地址
您可能感兴趣的专利
LAMINATED BOARD AND METHOD OF MAKING SAME
CIS-POLYPENTENAMERS
PROCESS FOR PRODUCING THERMOSETTING FINISHING POWDERS
STATE CHANGE DETECTING SYSTEM IN TELEPHONE EXCHANGE EQUIPMENT
HETEROJUNCTION SWITCHING AND MEMORY DEVICE
METALLIC MEMBER FOR SEMICONDUCTOR DEVICES
DIFFICULTLY INFLAMMABLE POLYURETHANES AND PROCESS FOR MAKING THEM
INSULATED GATE FIELD-EFFECT TRANSISTOR WITH VARIABLE GAIN
BALANCED MODULATOR
DIGITALLY CONTROLLED FREQUENCY SYNTHESIZER
STARTING MEANS FOR A SINGLE-PHASE ASYNCHRONOUS MOTOR
HIGH POWER DENSITY LASER
INGOT MOLDING HANDLING APPARATUS
OXADIAZOLYL-SUBSTITUTED NITROIMIDAZOLES
THIENYLIODONIUM SALTS
ANTI-INFLAMMATORY, ANTALGIC AND ANTI-PYRETIC MEDICAMENT, ON A PYRIDOXINE FLUFENAMATE BASIS
NITROGEN SUBSTITUTED CYCLIC AMINES AS ANTIOZONANTS
OUTDIALING INFORMATION STORE FOR SWITCHING SYSTEM
TONER FIXING APPARATUS
PROCESS FOR THE PREPARATION OF ISOQUINUCLIDINE DERIVATIVES
