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发明名称
Verfahren zur Herstellung von Hartpech
摘要
申请公布号
DE642437(C)
申请公布日期
1937.03.04
申请号
DE1935G090831D
申请日期
1935.07.16
申请人
GESELLSCHAFT FUER TEERVERWERTUNG M.B.H.
发明人
MEYER DR. FELIX;PREISS DR. OSWALD
分类号
C10C3/04
主分类号
C10C3/04
代理机构
代理人
主权项
地址
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