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
DRILL
摘要
申请公布号
JPS5689692(A)
申请公布日期
1981.07.21
申请号
JP19790163860
申请日期
1979.12.17
申请人
FURUKAWA KOGYO KK
发明人
MIKAMI YOSHIICHI
分类号
E21B3/00
主分类号
E21B3/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SEARCH DEVICE FOR MICROOFILM
CAMERA CAPABLE OF MOUNTING MOTOR DRIVE UNIT
TAPE RECORDER
MAGNETIC TAPE RECORDING POSITION DETECTOR
SOUND ABSORBING GAS EXHAUSTING DEVICE
SEMICONDUCTOR DEVICE
ENDLESS TAPE CARTRIDGE
UNIVERSAL FRAME DEVICE
PROPULSIVE ENGINE OF RUDDER THAT IS USED FOR SHIPING AT THE SAME TIME
APPARATUS FOR SEPARATING PIECES OF THIN PAPER
PROCESS FOR PREPARING STARCH XANTHATE PRODUCT
METHOD OF MAKING METAL MOLDS FOR PRODUCING MULTICOLORED BUTTONS
MODIFIED SILICATE BINDER
PRODUCTION OF HYDROPEROXIDES
MEMBRANE OF ETHYLENEEVINYL ALCOHOL COPOLYMER HAVING EXCELLENT PERMEABILITY AND ITS PRODUCTION METHOD
SINTERED ALLOY FOR PRODUCTION OF SLIDING MEMBER
SIGNAL COMPOSING MECHANISM
MANUSCRIPT DISCHARGING DEVICE
GUIDE SHOE COOLING FOR MANNESMANN PIERCER
OPTICAL SYSTEM OF REFLECTION TYPE
