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
DROP IMPACT TYPE WORKING MACHINE
摘要
申请公布号
JPH10317859(A)
申请公布日期
1998.12.02
申请号
JP19970134027
申请日期
1997.05.23
申请人
OTA TOMIO
发明人
OTA TOMIO
分类号
E21B1/04;E21B1/00;(IPC1-7):E21B1/00
主分类号
E21B1/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
TEMPERATURE CONTROL METHOD OF EXTRA-HIGH PRESSURE GENERATOR
MANUFACTURE OF THIN-FILM MAGNETIC HEAD
MOISTURE DETECTING ALARM OF FUEL FILTER FOR VEHICLE
IRREVERSIBLE TEMPERATURE SENSOR
LIGHT INTENSITY DETECTING APPARATUS
SHELL AND TUBE TYPE HEAT EXCHANGER
AXIAL FLOW TYPE HEAT EXCHANGER
MANUFACTURE OF ELASTIC PIPE JOINT
CIRCUIT MONITORING SYSTEM
PHOTOMETRIC DEVICE OF CAMERA
UNIT APPARATUS OF AIR CONDITIONER
MONITORING DEVICE FOR SYSTEM OPERATION
MEASUREMENT OF TRITIUM CONCENTRATION
APPARATUS FOR INSTALLING BUOY TYPE RADIO RESPONDER
MANUFACTURE OF SEMICONDUCTOR DEVICE
ALTERNATING CURRENT ERASING HEAD
PHOTOPOLYMERIZABLE COMPOSITION
NOZZLE FOR INK JET PRINTER
RECORDING AND REPRODUCING SYSTEM