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
Procédé de perforation des roches
摘要
申请公布号
FR1200238(A)
申请公布日期
1959.12.18
申请号
FRD1200238
申请日期
1958.03.05
申请人
发明人
ENGWALL STEN
分类号
E21B4/20;E21B7/28;E21B21/015
主分类号
E21B4/20
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD OF MANUFACTURING SEALED BATTERY
COAXIAL CABLE CONNECTOR, AND ANTENNA DEVICE
CONNECTOR
LIGHT-EMITTING DEVICE
POWER STORAGE ELEMENT, AND METHOD OF MANUFACTURING POWER STORAGE ELEMENT
AUTHENTICATION DEVICE, FINANCIAL TRANSACTION DEVICE, COMMUNICATION TERMINAL, INFORMATION PROCESSING DEVICE, AND PROGRAM
INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSOR, INFORMATION PROCESSING METHOD AND PROGRAM
RECORDING AND REPRODUCING APPARATUS
TELEPHONE COMMUNICATION TERMINAL, COMMUNICATION SYSTEM, AND CONTROL METHOD OF COMMUNICATION SYSTEM
PROTECTION COVER AND INFORMATION TERMINAL
RADIATION IMAGING SYSTEM
EARPHONE MICROPHONE
WIRELESS MICROPHONE SYSTEM
DEVICE, SYSTEM AND METHOD FOR PACKET TRANSMISSION
ORGANIC ELECTROLUMINESCENT ELEMENT
THERMOELECTRIC CONVERSION MODULE
INSPECTION POINT SETTING DEVICE AND PROGRAM
INFORMATION PROCESSING APPARATUS, INFORMATION MANAGEMENT METHOD, AND INFORMATION MANAGEMENT PROGRAM
KEY DRIVE DEVICE AND KEYBOARD INSTRUMENT
MUFFLER
