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 expansible drill bits
摘要
申请公布号
US2944796(A)
申请公布日期
1960.07.12
申请号
US19550516476
申请日期
1955.06.20
申请人
BAKER OIL TOOLS INC.
发明人
BAKER REUBEN C.
分类号
E21B10/32
主分类号
E21B10/32
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BERBAN DERIVATIVES
METHOD OF MAKING BETA-ALUMINA
CONTROL CIRCUIT FOR HIGH VOLTAGE DC ELECTROSTATIC SYSTEM
CONTROL OF ANTI-PARALLEL THYRISTORS CONNECTED TO TRANSFORMER PRIMARY
2-LINE POWER SUPPLY
METHOD AND APPARATUS FOR ELECTROFILTRATION
APPARATUS FOR THE PRODUCTION OF CARBON BLACK
ON-SITE BULK MANUFACTURE AND DELIVERY OF A WATER-IN-OIL EMULSION BLASTING AGENT
SINTERING SILICON GRANULATE FOR PRODUCING SILICON MELTS
INSTALLATION FOR THE PRODUCTION OF CARBON BLACK
PROCESS FOR PREPARING A GAS ABSORBENT
DEVICE FOR ADDING DISINFECTANT TO THE FLUSHING WATER OF A W.C.
HITCH FOR TRAILER ON FLATCAR
WASSERVERDUENNBARE BINDEMITTEL FUER KATIONISCHE ELEKTROTAUCHLACKE UND VERFAHREN ZU IHRER HERSTELLUNG
ANORDNING FOER HOPSKARVNING AV ROER.
HJAELPTAETNING FOER EN DYNAMISK TAETNING.
HETEROCYCLISK SUBSTITUEREDE 2(1H)-QUINOLONER, DERES ANVENDELSE TIL FREMSTILLING AF HJERTESTIMULERENDE LAEGEMIDLER, FARMACEUTISKE PRAEPARATER INDEHOLDENDE FORBINDELSERNE OG MELLEMPRODUKTER VED DERES FREMSTILLING
MEDICATED ANIMAL FEED PREMIX
DNA-SEKVENS, REKOMBINANT-DNA OG VAERTSCELLER TRANSFORMERET MED SAMMESAMT FREMGANGSMAADE TIL FREMSTILLING AF HUMAN-VAEVSPLASMINOGEN AKTIVATOR
INDRETNING TIL INTRADERMAL APPLICATION AF TESTSTOFFER OG VACCINER
