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经营范围
发明名称
Appareil pour opérer le mélange du bitume au goudron, la fusion et le fluxage des bitumes
摘要
申请公布号
FR41303(E)
申请公布日期
1932.12.03
申请号
FRD41303D
申请日期
1932.01.26
申请人
发明人
SCHARS ALPHONSE-JOSEPH
分类号
E01C19/45
主分类号
E01C19/45
代理机构
代理人
主权项
地址
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