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
BELLOWS VALVE
摘要
申请公布号
EP2370664(A1)
申请公布日期
2011.10.05
申请号
EP20090768559
申请日期
2009.11.25
申请人
PETROLEUM TECHNOLOGY COMPANY AS
发明人
TVEITEN, MAGNAR;KLEPPA, ERLING;STOKKA, OEYVIND;SEVHEIM, OLE
分类号
E21B34/08;E21B43/12
主分类号
E21B34/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SADDLE TYPE OFF-ROAD TRAVELING FOUR-WHEEL VEHICLE
METHOD AND APPARATUS FOR DRAWING OPTICAL FIBER
WASTEWATER TREATMENT METHOD AND APPARATUS THEREFOR
VIRTUAL CAMERA POSITION CONTROL PROGRAM FOR THREE- DIMENSIONAL GAME
METHOD FOR PREVENTING DEACTIVATION OF ACTIVATED SLUDGE BY POISONOUS HARMFUL COMPONENT FROM OCCURRING
METHOD FOR TREATING SOIL WATER BY USING MULTI-STAGE BIOLOGICAL MEMBRANE
SWITCHABLE MIRROR GLASS COATED WITH THIN FILM OF MAGNESIUM - NICKEL ALLOY
ORGANIC SUBSTANCE TREATMENT APPARATUS
SYSTEM AND METHOD FOR EXPOSING IMAGE
PACKAGING BOX
WOODEN FLOOR MATERIAL HAVING LAMINATED WOOD USING SYMMETRICAL STRUCTURE AND SYNTHETIC RESIN LAYER AND METHOD FOR MANUFACTURING THE MATERIAL
DISPLAY SURFACE PROTECTING FILM
DECELERATION GEAR FOR ELECTRIC POWER STEERING DEVICE
METHOD FOR TREATING HEXAVALENT CHROMIUM-CONTAINING SOIL
EASILY ADHESIVE STRETCHED FILM OF SYNDIOTACTIC POLYSTYRENE
EXPANDER ROLL APPARATUS AND WIDENING METHOD FOR FILM- LIKE POLYMERIC MATERIAL
TAKE-UP DEVICE OF WINDING ELEMENT
INFORMATION MANAGEMENT EQUIPMENT FOR AUTOMOBILE LIVE INFORMATION, MONITORING DEVICE, FILING DEVICE, MONITORING METHOD, FILING METHOD AND INFORMATION MANAGEMENT METHOD FOR AUTOMOBILE LIVE INFORMATION
PRINTER AND METHOD FOR KEEPING NOZZLE WET
INK STORAGE CONTAINER
