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经营范围
发明名称
Treatment of rosin and product thereof
摘要
申请公布号
GB351583(A)
申请公布日期
1931.07.02
申请号
GB19300010470
申请日期
1930.04.02
申请人
WILLIAM BURNS LOGAN
发明人
分类号
C09F1/00
主分类号
C09F1/00
代理机构
代理人
主权项
地址
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