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经营范围
发明名称
Tuyautage de soufflerie
摘要
申请公布号
FR774091(A)
申请公布日期
1934.11.30
申请号
FRD774091
申请日期
1934.06.02
申请人
发明人
ETIENNE COURTOIS,
分类号
F16L11/18
主分类号
F16L11/18
代理机构
代理人
主权项
地址
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