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
Outil de forage
摘要
申请公布号
FR714611(A)
申请公布日期
1931.11.17
申请号
FRD714611
申请日期
1931.04.02
申请人
发明人
BERTHIEZ JEAN-CHARLES-SAMUEL
分类号
E21B10/16
主分类号
E21B10/16
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Power interrupting device, particularly for a frequency convertor
Apparatus for extending windows using z buffer memory
Method and apparatus for translating rectilinear information into scan line information for display by a computer system
Sensing apparatus
Verfahren zur Herstellung von diastereoisomerenreinen Tetrahydrofolaten.
DISPOSITIVO DE IMPLANTACION.
Endoscopic surgical system with sensing means.
TREATMENT OF MIXED METAL SULFIDE CONCENTRATES
APARATO Y MECANISMO DE CORREDERA, PARA CAJONES.
METODO PRA LA CURACION, ASISTIDA POR LA LUZ, DE RECUBRIMIENTOS.
Textile-like apertured thermoplastic film - has micro-holes defined by fibre-like elements formed by directing columnar streams of water at its surface
Multi-stream sampling apparatus and method therefor
Cyanophenylpyrazolines
Retrovirus from the HIV Group and its use
Method and device for transverse distribution of a flowing medium
Physiologically active peptide composition
CONSERVACION DE DESECHOS DE ORTOPOSFATO.
Kiteisiä propeenipolymeerejä, joilla on korkea sulavirta-arvo ja kapea moolimassajakautuma
PROTESE VASCULAR E PROCESSO PARA A SUA PRODUCAO
PROCESSO DE BENEFICIAMENTO DE BLOCOS DE BORRACHA COM ACO
