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发明名称
摘要
申请公布号
DE2226814(C3)
申请公布日期
1982.03.11
申请号
DE19722226814
申请日期
1972.06.02
申请人
PETROVA, NINA VLADIMIROVNA, MOSKVA, SU
发明人
PETROVA, NINA VLADIMIROVNA, MOSKVA, SU
分类号
F16K15/20;(IPC1-7):F16K15/02
主分类号
F16K15/20
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代理人
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