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发明名称
Procédé pour extraire la résine des bois
摘要
申请公布号
FR823326(A)
申请公布日期
1938.01.18
申请号
FRD823326
申请日期
1937.06.21
申请人
发明人
WILHELM KARL FRIEDRICH
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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