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发明名称
Rotary positive-displacement pumps or compressors
摘要
申请公布号
GB1149981(A)
申请公布日期
1969.04.23
申请号
GB19670028436
申请日期
1967.06.20
申请人
OTTO LUTZ
发明人
OTTO LUTZ
分类号
F04C2/46;F04C5/00;F04C15/00
主分类号
F04C2/46
代理机构
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