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发明名称
Soupape d'étai de mine
摘要
申请公布号
FR1176775(A)
申请公布日期
1959.04.15
申请号
FRD1176775
申请日期
1957.06.18
申请人
HOESCH-WESTFALENHUETTE AKTIENGESELLSCHAFT
发明人
分类号
B66F3/42;E21D15/44;E21D15/51;F16K17/10
主分类号
B66F3/42
代理机构
代理人
主权项
地址
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