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 défonçage combiné
摘要
申请公布号
FR56970(E)
申请公布日期
1952.10.10
申请号
FRD56970
申请日期
1947.12.30
申请人
发明人
MARCEROU PAUL
分类号
E21B4/16;E21B7/00;E21B19/081;E21C25/52;H03G3/22
主分类号
E21B4/16
代理机构
代理人
主权项
地址
您可能感兴趣的专利
AIR CONDITIONER FOR VEHICLE
TRANSPORTING DEVICE FOR SPACE
CONDUCTIVE MATERIAL PRINTING MACHINE, METHOD FOR CLEANING PRINTING MASK, AND CLEANING PROGRAM FOR PRINTING MASK
RECORDING DEVICE
TRANSPARENT LAMINATED FILM FOR BALLOON AND BALLOON
LIQUID DROPLET DISCHARGING DEVICE
RECORDING DEVICE
SUCTION CAP
METHOD FOR MANUFACTURING SOIL MORTAR
INJECTION MOLDING MACHINE
METHOD FOR MANUFACTURING CYLINDRICAL METALLIC FIXTURE WITH POLYGONAL PART
APPARATUS FOR SUPPLYING METALLIC MATERIAL, AND APPARATUS AND METHOD FOR MOLDING METALLIC PRODUCT
DIE COOLING METHOD AND DIE COOLING DEVICE
WELDING TIP AND ITS PRODUCING METHOD
WORKPIECE GRIPPING TOOL
SPRAY GUN
DEODORIZER, AND DEODORIZING METHOD
METHOD FOR IMPROVING ACTIVITY OF PHOTOCATALYST CONSISTING OF VISIBLE LIGHT RESPONSIVE METAL NITRIDE AND METAL OXYNITRIDE
MIXER USING MIXING TUBE
PRODUCTION METHOD FOR HYDROPHILIC POLYVINYLIDENE FLUORIDE-BASED RESIN POROUS MEMBRANE
