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发明名称
Improvements in or relating to the production of diphenyl-pyridyl-methanes
摘要
申请公布号
GB804159(A)
申请公布日期
1958.11.12
申请号
GB19560008994
申请日期
1956.03.22
申请人
DR. KARL THOMAE G.M.B.H.
发明人
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主分类号
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