WELL TOOL HYDROSTATIC RELEASE MEANS,申请号GB19900014894-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	WELL TOOL HYDROSTATIC RELEASE MEANS
摘要
申请公布号	GB9014894(D0)	申请公布日期	1990.08.22
申请号	GB19900014894	申请日期	1990.07.05
申请人	CAMCO INTERNATIONAL INC	发明人
分类号	E21B34/00;E21B34/10	主分类号	E21B34/00
代理机构		代理人
主权项
地址

您可能感兴趣的专利

INFORMATION PROCESSING UNIT, PROGRAM EXECUTION METHOD, AND PROGRAM FOR CONTROLLING ELECTRIC APPLIANCE

STRUCTURE FOR OUTPUT-STAGE FILM CAPACITOR IN POWER CONDITIONER

container for thermal reactor of total nitrogen analysis apparatus

USED PAPER RECYCLING APPARATUS, AND ITS PULP MANUFACTURING DEVICE, PULP SUPPLYING DEVICE, AND DEWATERING DEVICE

PUMP, IN PARTICULAR A HIGH-PRESSURE FUEL PUMP

SEMICONDUCTOR DEVICE FOR PREVENTING WARPAGE

PISTON RING FOR INTERNAL COMBUSTION ENGINES

SIMULTANEOUSLY SUPPLYING/DISCHARGING VENTILATION FAN AND AIR CONDITIONER

A CHAIN LOCK OF STREET LAMP BAND

COMPLEX ELECTROKINETIC DECONTAMINATING APPARATUS FOR DECONTAMINATING RADIONUCLIDE

LOCATION SPECIFIC SEARCH FOR REGIONAL SATELLITE VEHICLES

Composition Comprising Hedyotis diffusa extract for prevention or treatment of nonalcoholic fatty liver disease

APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING CONTROLL CHANNEL IN MOBILE COMMUNICATION SYSTEM

APPARATUS FOR NONDESTRUCTIVELY PRODUCING HIGH-CONCENTRATION HYDROGEN SOLUTION

APPARATUS AND PROCESS FOR GLASSMAKING

Manufacturing method of a functional light weight composition boards and the functional light weight composition boards by the same

apparatus for attaching substrates of flat plate display element

MANUFACTURING METHOD AND CONSTRUCTION METHOD FOR HEAT INSULATOR

Service-based access for enterprise private network devices to service provider network services