英语复读机价格
专利名称：Double-acting pump
申请号：US08945420
哈尔滨工业大学mba
申请日：19971027
初一英语教学反思公开号：US06299415B1
公开日：
关于诚信的演讲稿20011009specifically
专利内容由知识产权出版社提供
roentgen专利附图：
avx摘要：A double-acting pump having two cavities, each of which is divided into an
operating chamber and a working chamber by means of a respective movable partition wall. Each of the operating and working chambers is provided with a valve-controlled inlet and outlet for a gaous driving medium and a pump-transported liquid working medium. A movement transmission device extends between the movable partition walls
and transmits movement of one partition wall to the other and vice versa. This movement transmission device includes a spring element for compression and expansion in the movement transmission direction such that a distance between the partition walls is variable as one partition wall can move independently of the other wall responsive to relative gas pressure in the operating chambers.
埃及王子的主题曲>绕弯
launch申请人：BAHRTON SVANTE
代理机构：Jacobson Holman, PLLC
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