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发明名称
A FREE-PISTON ENGINE
摘要
<p>The invention discloses a free-piston engine, a hydraulic engine.The engine is suitable for impacting operation.</p>
申请公布号
WO2002008590(P1)
申请公布日期
2002.01.31
申请号
CN2001001063
申请日期
2001.06.28
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发明人
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