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
DISPOSITIVO DE PROTECAO DE UMA CABECA DE PERFURACAO
摘要
申请公布号
BR7801110(A)
申请公布日期
1978.09.26
申请号
BR19780001110
申请日期
1978.02.23
申请人
SEA TANK CO
发明人
ALBAN C
分类号
E21B43/01;E21B33/037;E21B43/10;(IPC1-7):E21B17/10
主分类号
E21B43/01
代理机构
代理人
主权项
地址
您可能感兴趣的专利
RECOVERY OF WATER VAPOR USING A WATER VAPOR PERMEABLE MIXED ION CONDUCTING MEMBRANE
APPARATUS AND METHOD FOR THE DETECTION OF THE FOCUSED POSITION OF AN OPTICAL SYSTEM, AND OPHTHALMOLOGICAL TREATMENT APPARATUS
JET-WHEEL IMPACT ATOMIZER FOR SPRAY DRYING AND A PROCESS FOR THE PREPARATION OF FINELY DISPERSED SPRAY OF SLURRY/LIQUID
COATING ON A GLASS SUBSTRATE AND A COATED GLASS PRODUCT
MODULAR CRANKSHAFT
METHOD AND APPARATUS FOR FORMING POROUS METAL IMPLANTS
HEAT EXCHANGER AND PRODUCTION METHOD
SLEEVE FOR USE IN MAKING ABRASIVE ARTICLES
CAP LAYER FOR AN ALUMINUM COPPER BOND PAD
开闭装置的操作机构
在移动终端中使用授权无线技术确定未授权无线技术的操作参数的系统和方法
DYNAMIC NETWORK MANAGAEMENT
VIBRATION-TYPE MEASURING SENSOR
METHOD FOR CONFIGURING BILLING PROCESSES IN NETWORK ELEMENTS
SUBTERRANEAN FLUIDS HAVING IMPROVED ENVIRONMENTAL CHARACTERISTICS AND METHODS OF USING THESE FLUIDS IN SUBTERRANEAN FORMATIONS
Charged particle beam device
Driving apparatus and driving system for electric motor
A METHOD OF SEISMIC SURVEYING AND A SEISMIC SURVEYING ARRANGEMENT
DIRECT VISION SUBCUTANEOUS TISSUE RETRACTOR
Parts for vehicles and line heater unit for snow-melting structure part thereof
