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
Retractable pellet impact drill bit
摘要
申请公布号
US2692116(A)
申请公布日期
1954.10.19
申请号
US19520283836
申请日期
1952.04.23
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
CAMP JOHN M.;ECKEL JOHN E.
分类号
E21B7/16
主分类号
E21B7/16
代理机构
代理人
主权项
地址
您可能感兴趣的专利
AMPOULE
SIMULATOR FOR RECORDER AND ITS CONFIGURATION SYSTEM
DETECTION SYSTEM FOR ERRONEOUS CONNECTION OF OPTICAL TRANSMISSION LINE
SEALED CUBET FOR PCR AND USE OF IT
TETRAHYDROISOQUINO(2,1-C) (11,3)BENZODIAZEPINES
ALPHA-GLYCOSYL HESPERIDIN, PRODUCTION AND USE THEREOF
COPYING MACHINE
KEY DEVICE FOR CAR
PREPARATION OF NOODLE CONTAINING GOLD FOIL
METHOD FOR REPELLING VERMIN OF GUINEA PEPPER
MOTOR CONTROLLING METHOD
LIGHT EMITTING DEVICE USING DIAMOND AND ITS MANUFACTURE
CONTROL SYSTEM IN MOBILE COMMUNICATION
PRODUCTION OF BINDER FOR TONER AND TONER FOR DEVELOPING ELECTROSTATIC IMAGE
POWER SUPPLY CONTROLLER
PROJECTION TYPE DISPLAY DEVICE
MOUSE CONTROL SYSTEM
EARLY DETECTION OF REDIFFERENTIATING INDIVIDUAL BY GENE TRANSFER
FRAME FREQUENCY CONVERTER FOR HIGH-PRECISION TELEVISION RECEIVER
SEPARATOR FOR VIRUS AND CELL
