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
Trépan à perforer la roche
摘要
申请公布号
FR989393(A)
申请公布日期
1951.09.07
申请号
FRD989393
申请日期
1949.06.21
申请人
SCHOELLER-BLECKMANN STAHLWERKE AKTIENGESELLSCHAFT
发明人
分类号
E21B17/04
主分类号
E21B17/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MOVING IMAGE ENCODING DEVICE AND PROGRAM
GRAPHICAL USER INTERFACE
DISPLAY CONTROLLER, INFORMATION PROCESSOR, DISPLAY CONTROL METHOD, AND DISPLAY CONTROL PROGRAM
LIGHTING APPARATUS AND LIGHTING SYSTEM
INTERNAL COMBUSTION ENGINE CONTROL SYSTEM
SMALL VEHICLE
HYDRAULIC SYSTEM WITH MECHANISM FOR RELIEVING PRESSURE TRAPPED IN ACTUATOR
LOCKING DEVICE OF SLIDING MECHANISM
HEAT RESISTANT PAPER CONTAINER HAVING LIGHT SHIELDING PROPERTIES
OPHTHALMIC ADMINISTRATION AUXILIARY TOOL
MANUFACTURING METHOD FOR BOXED TISSUE PAPER PRODUCT
ROBOT COOPERATION SYSTEM
MANUFACTURING METHOD OF SINGLE-LAYERED OR MULTILAYERED METAL STRUCTURE IN LIGA TECHNIQUE AND STRUCTURE OBTAINED THEREBY
SEMICONDUCTOR DEVICE AND ITS MANUFACTURING PROCESS
TITANIUM DIOXIDE-ALKALINE EARTH METAL TITANATE COMPOSITE FINE PARTICLE, METHOD FOR PRODUCING THE SAME AND HIGH-REFRACTIVE-INDEX MATERIAL
HEAT ACCUMULATOR AND ENGINE
MANUFACTURING METHOD OF POWER MOSFET AND POWER MOSFET
EMERGENCY RELEASING DEVICE FOR AUTOMATIC PARKING BRAKE
DIGITAL BROADCAST RECEIVER
VEHICLE DETECTOR
