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经营范围
发明名称
Process for the extraction of high-grade products from raw material containing pit coal or brown coal
摘要
申请公布号
GB774273(A)
申请公布日期
1957.05.08
申请号
GB19520032178
申请日期
1952.12.19
申请人
BERGWERKSVERBAND ZUR VERWERTUNG VON SCHUTZRECHTEN DER KOHLENTECHNIK G.M.B.H.
发明人
分类号
C10L9/00
主分类号
C10L9/00
代理机构
代理人
主权项
地址
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