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发明名称
PRESSURE CHANGE-OVER VALVE FOR MUTUAL OPERATION BETWEEN PRESSURE RECEIVING PISTONS
摘要
申请公布号
AU6642990(A)
申请公布日期
1992.06.11
申请号
AU19900066429
申请日期
1990.11.16
申请人
TAKESHI OHKUMA
发明人
TAKESHI OHKUMA
分类号
F02B23/00
主分类号
F02B23/00
代理机构
代理人
主权项
地址
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