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经营范围
发明名称
Treatment of rosin
摘要
申请公布号
US2311511(A)
申请公布日期
1943.02.16
申请号
US19420461792
申请日期
1942.10.12
申请人
LASZLO AUER
发明人
AUER LASZLO
分类号
C09F1/04
主分类号
C09F1/04
代理机构
代理人
主权项
地址
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