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经营范围
发明名称
Perfectionnements aux vannes papillons
摘要
申请公布号
FR1213643(A)
申请公布日期
1960.04.01
申请号
FRD1213643
申请日期
1958.11.28
申请人
DEWRANCE & CO. LIMITED
发明人
分类号
F16K1/228
主分类号
F16K1/228
代理机构
代理人
主权项
地址
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