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
METHOD OF INLINE EXCAVATION CONSTRUCTION USING DRILL STRINGS AND DRILL STRINGS
摘要
申请公布号
JPS63189590(A)
申请公布日期
1988.08.05
申请号
JP19870021812
申请日期
1987.02.03
申请人
TEISEKI SAKUSEI KOGYO KK
发明人
ONO SHIKARI
分类号
E21B7/08
主分类号
E21B7/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Folding seats
Improvements in or relating to latching devices
Metal eye elements for dolls, model animals and the like
Improvements relating to distributor valve assemblies for fluid pressure braking systems
A cathode ray deflection system
Improvements in polyphase transductors
Electromagnetic devices
Improvements in or relating to time constant control circuits for radio telephone and similar systems
Improvements in or relating to electric apparatus containers
Improvements in or relating to safety devices for power presses and like machines
Improvements relating to electrically-heated hot water boilers
Improvements in or relating to aircraft undercarriages
A method and centrifugal separator for purifying beer
Improvements in or relating to method of and apparatus for generating an electric wave
Sound film recording apparatus
Commande pour plusieurs broches
Perfectionnements aux lampes de sûreté du type davy, utilisables au fond des mines
Préparation du béta-naphtol
Dispositif de renforcement et de centrage pour disques ou meulettes dentaires
Procédé de transmission simultanée de plusieurs informations
