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
DOWNHOLE DRILLING APPARATUS
摘要
申请公布号
CA813213(A)
申请公布日期
1969.05.20
申请号
CAD813213
申请日期
申请人
THE YOUNGSTOWN SHEET AND TUBE COMPANY
发明人
ROY H. CULLEN;CHARLES H. ELLIOTT;JIMMIE R. AKER
分类号
主分类号
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Lithographic apparatus and method to detect correct clamping of an object
Method for determining the load in the drum of a laundry treatment machine
Method for identifying the context rules of data message attributes
ABSORBER IN A SHEET FORM AND ABSORBER PRODUCT USING THE SAME
Apparatus and method to obtain phase contrast x-ray images
Vane-Type Camshaft Phaser
Information terminal device
Draining device
ECTOCORNEA-LIKE SHEET AND METHOD OF CONSTRUCTING THE SAME
CRYSTAL PRODUCTION METHOD FOR GALLIUM OXIDE;IRON MIXED CRYSTAL
GROUP AUCTION METHOD USING AUCTION COMMUNITY SERVER SYSTEM
IUB INTERFACE DEVICE BETWEEN BASE STATION CONTROLLER AND BASE STATION, AND METHOD THEREOF
FRONT FILTER FABRICATION METHOD
A BATTERY WITH MINIATURISED SOFC FUEL CELLS
WAFER CARRIER DOOR AND LATCHING MECHANISM WITH HOURGLASS SHAPED KEY SLOT
A PROCESS FOR PRODUCING PHENSERINE AND ITS ANALOG
PROCESS AND INTERMEDIATES FOR PYRIDAZINONE ANTIDIABETIC AGENTS
DEVICE FOR VARIABLY ACTUATING THE GAS EXCHANGE VALVES IN RECIPROCATING ENGINES
SMALL-SIZED MOTOR, SMALL-SIZED VIBRATION MOTOR, AND PORTABLE INFORMATION DEVICE
IMPACT FORCE RELIEVING STRUCTURE IN STEERING DEVICE OF CAR
