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发明名称
摘要
申请公布号
FR2495271(B1)
申请公布日期
1983.01.14
申请号
FR19800025512
申请日期
1980.12.01
申请人
PONT A MOUSSON SA
发明人
分类号
F16K31/524;F16K31/60;G05D23/02;(IPC1-7):F16K31/52
主分类号
F16K31/524
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