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
Clutch for subsurface well tools
摘要
申请公布号
US2878878(A)
申请公布日期
1959.03.24
申请号
US19560560331
申请日期
1956.01.20
申请人
BAKER OIL TOOLS, INC.
发明人
BAKER REUBEN C.
分类号
E21B43/10
主分类号
E21B43/10
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PREPARATION OF SEEDLING GROWING MEDIUM
CULTURE OF PORIA COCOS
MANUFACTURE OF BELT
LUSTERING AGENT FOR RUBBER AND PLASTIC
POLYIMIDE RESIN COMPOSITION
TRANSFER APPARATUS
METHOD FOR MULTI-STAGE SPEED REDUCTION AND STOPPING IN CONVEYER DRIVE
ASSEMBLY OF ASSEMBLED PARTS
ELECTRIC DISCHARGE MACHINING METHOD
PRODUCTION OF SOLUBLE CELLULOSE
POLYMERIZATION OF VINYL MONOMER
ELECTRIC DISCHARGE MACHINING FLUID
MAGNETIC DISK DRIVING DEVICE
CONTROLLER FOR POWER CONVERTER
PRODUCTION OF HORIZONTALLY ORIENTED MAGNETIC RECORDING MEDIUM
DIGITAL INPUT CIRCUIT
PRODUCTION OF THIN FILM MAGNETIC HEAD
PATTERN COLLATING SYSTEM
RECOGNIZING DEVICE OF CHARACTER WITH SONANT MARK AND P-SONANT MARK
METHOD FOR REDUCING DETERIORATION OF ABERRATION DUE TO HUMIDITY OF PLASTIC LENS
