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发明名称
Verfahren zur Herstellung von Hartpech
摘要
申请公布号
DE670187(C)
申请公布日期
1939.01.13
申请号
DE1936G092646D
申请日期
1936.04.09
申请人
GESELLSCHAFT FUER TEERVERWERTUNG M.B.H.
发明人
分类号
C10C1/16
主分类号
C10C1/16
代理机构
代理人
主权项
地址
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