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经营范围
发明名称
Method of producing asphalt
摘要
申请公布号
GB373105(A)
申请公布日期
1932.05.19
申请号
GB19300034117
申请日期
1930.11.12
申请人
SIEGMUND WILLI ARETZ
发明人
分类号
C10C3/02
主分类号
C10C3/02
代理机构
代理人
主权项
地址
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