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发明名称
摘要
申请公布号
DE2220484(A1)
申请公布日期
1972.11.09
申请号
DE19722220484
申请日期
1972.04.26
申请人
发明人
分类号
F01C21/02;F01C21/10;(IPC1-7):F04C1/00
主分类号
F01C21/02
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