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
Rotary well bits
摘要
申请公布号
US3239431(A)
申请公布日期
1966.03.08
申请号
US19630260165
申请日期
1963.02.21
申请人
RAYMOND KNAPP SETH
发明人
KNAPP SETH RAYMOND
分类号
E21B10/08
主分类号
E21B10/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SHEET AND ITS MANUFACTURING METHOD
INCOMBUSTIBLE PLATE AND ITS MANUFACTURING METHOD
COMPOSITE BODY, ELECTRONIC COMPONENT STORING CASE USING THE SAME, AND MANUFACTURING METHOD OF COMPOSITE BODY
VACUUM FORMING METHOD AND VACUUM FORMING APPARATUS OF PLASTIC SHEET
RESIN MOLDED ARTICLE AND ITS MANUFACTURING METHOD
PRINTING SYSTEM OF CLOTH PRODUCT
MOLD-RELEASING POLYESTER FILM FOR TRANSFER CONCURRENT WITH MOLDING
METHOD FOR MANUFACTURING SHEET
PRODUCTION EQUIPMENT OF MULTIPLE SHEET
NOZZLE GATE OPENING AND CLOSING TIMING ADJUSTING MECHANISM IN MULTIPOINT GATE INJECTION MOLDING MACHINE AND MULTIPOINT GATE INJECTION MOLDING METHOD
MICRO-MECHANICAL STRUCTURAL MEMBER HAVING THIN FILM CAP, AND ITS MANUFACTURING METHOD
WORKPIECE CONVEYING SYSTEM AND WORKPIECE CONVEYING METHOD
SURFACING MATERIAL FOR CULTURAL ASSET PAINTING WORK AND RESTORING METHOD OF CULTURAL ASSET PAINTING WORK USING IT
APPARATUS FOR ROLLING WHEEL RIM FOR VEHICLE
CAULKING STRUCTURE OF SIDE SEAMED PART
WORKPIECE CONVEYING DEVICE AND MACHINE TOOL EQUIPPED WITH WORKPIECE CONVEYING DEVICE
FILTER CLEANING APPARATUS AND FILTER CLEANING METHOD
SEPARATOR FOR SEDIMENTED SAND
RICE POLISHING FACILITY
METHOD FOR IMPROVING QUALITY OF WATER IN WATER TANK AND WATER QUALITY IMPROVER THEREFOR
