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经营范围
发明名称
OIL FREE SCREW FLUID MACHINE
摘要
申请公布号
JPH03145591(A)
申请公布日期
1991.06.20
申请号
JP19890284592
申请日期
1989.10.31
申请人
HITACHI LTD
发明人
NAGAI TOSHIAKI
分类号
F04C18/16
主分类号
F04C18/16
代理机构
代理人
主权项
地址
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