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
Downhole tool
摘要
Tools and methods for subsurface operations. Circuit arrangements providing a damping effect against undesired vibration effects on inertial data signals derived from inertial sensors disposed in a downhole tool.
申请公布号
US7975392(B1)
申请公布日期
2011.07.12
申请号
US20100720758
申请日期
2010.03.10
申请人
NATIONAL OILWELL VARCO, L.P.
发明人
SPAULDING PAUL D.
分类号
G01C19/00
主分类号
G01C19/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Internally plasticised copolymer of vinyl chloride
VERFAHREN ZUR HERSTELLUNG VON GIPS AUS PHOSPHOGIPS.
PLAQUETTE DE CONDITIONNEMENT D'INSTRUMENTS A CANAUX DENTAIRES.
(B) ;PIECE D''HORLOGERIE ELECTRONIQUE
SAURES ALKALICITRAT.
JONCTION A VERROUILLAGE POUR LE GUIDAGE D'UN ELEMENT PORTANT UNE CHARGE.
PROCEDIMENTO PER L ELIMINAZIONE DI BIOSSIDO DI ZOLFO DA GAS DI SCARICO
PROCEDIMENTO PER ESSICCARE FOGLI DI POLICLOROPRENE ED ESSICCATOIO PER EFFETTUARE TALE PROCEDIMENTO
VERFAHREN ZUR TRENNUNG VON DIASTEREOMEREN 3-(3,4-DIBENZYLOXYPHENYL)-SERIN.
PROCEDIMENTO PER LA PULITURA DI DISCHI SEMICONDUTTORI LEVIGATI
PROCEDIMENTO PER LA PRODUZIONE DI IDROSSIMETIL IDROSSIALCHIL ISOCIANURATI E PRODOTTO OTTENUTO
SWITCHING CONTROLLER FOR AUTOMATIC COMMUNICATION CIRCUIT
TRANSMISSION POWER CONTROLLING SYSTEM FOR EARTH STATION OF SATELLITE COMMUNICATION
SOLAR BATTERY
INTERFACE CHECK DEVICE FOR COMPUTER
DETECTOR FOR BIOLOGICAL OR CHEMICAL REACTION OF SAMPLE
CONTROL DEVICE FOR SCANNING DRIVE MOTOR
SPEED CONTROLLER FOR MOTOR
OPERATION CONFIRMING SYSTEM FOR DIGITAL INPUT CIRCUIT
EMULSION HAIR-CARE PRODUCT