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
Apparatus for disconnecting pumping apparatus from a beam
摘要
申请公布号
US2171192(A)
申请公布日期
1939.08.29
申请号
US19370175155
申请日期
1937.11.17
申请人
OIL WELL SUPPLY COMPANY
发明人
RAVANELLI BENNETT H.
分类号
E21B43/12
主分类号
E21B43/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD AND APPARATUS FOR CONTROLING DIGITAL APPARATUS USING EVENT OCCURRING CRITICAL POINT
APPARATUS FOR BEAUTY AND CURE USING SUPERSONIC WAVES AND LOW FREQUENCY
SEMICONDUCTOR MEMORY DEVICE
APPARATUS OF ALIGNING WAFER FOR FABRICATING SEMICONDUCTOR DEVICES
PREPARATION METHOD OF TRANSGENIC PLANT CAPABLE OF PRODUCING HIGHER LEVEL OF TOTAL TOCOPHEROL, AND TRANSGENIC PLANT
SEMICONDUCTOR DEVICE WITH DUAL GATE AND METHOD FOR MANUFACTURING THE SAME
COSMETIC COMPOSITION CONTAINING A SOFTENED NATURAL PETAL
METHOD FOR FABRICATING SEMICONDUCTOR DEVICE
METHOD FOR FORMING WAFER MARK
METHOD FOR FORMING TRANSISTOR OF SEMICONDUCTOR DEVICE
AVATAR IMAGE PROCESSING UNIT
AVATAR IMAGE PROCESSING UNIT
METHOD FOR FORMING ISOLATION FILM OF SEMICONDUCTOR DEVICE
METHOD FOR DISPLAYING STATUS USING THE AVATAR OF WASHING MACHINE
METHOD FOR DETECTING DEFECTS OF SEMICONDUCTOR DEVICE
PERSONAL PORTABLE DEVICE INCLUDING A WIDE-VIEW DISPLAY WINDOW
FUSE BOX OF SEMICONDUCTOR DEVICE
MOBILE PHONE HAVING STORGE OF LOGGING MESSAGE FUNCTION AND METHOD FOR MEASURING CALL PERFORMANCE USING THE MOBILE PHONE
GATE ELECTRODE WITH DOUBLE DIFFUSION BARRIER AND METHOD FOR MANUFACTURING THE SAME
AIR CLEANER
