狗为什么爱吃骨头
中国航天成就专利名称：GAUGE HANGER
发明人：Mark TOLLEY,Matthew WALTERS,Matthew
BOLSOVER,Philip MARCH,Karl彩凤飞
BEARDSLEY,Peter BIDDLESTONE
申请号：US15302162
申请日：20150324
公开号：US20170022772A1
公开日：
车鉴定20170126
专利内容由知识产权出版社提供
尊前谈笑人依旧
抵押期限专利附图：
摘要：A gauge hanger and a tting tool are disclod. The tting tool includes an electro-mechanical impact driver and a drive shaft which extends out of an outer casing
The gauge hanger compris a nut which can be engaged by the drive shaft When the nut is rotated it can draw a threaded mandrel upwardly in a wellbore. This caus the grippers in a linkage asmbly to be driven radially outwardly so that they can grip the sides of the wellbore. A pin is designed to shear once the grippers have engaged with the sides of the wellbore so that the tting tool can be lifted clear.
以租代购合同
申请人：KOTO HOLDINGS LIMITED
地址：Renmark, South Australia AU
国籍：AU
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