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发明名称
Treatment of tar
摘要
申请公布号
US2075866(A)
申请公布日期
1937.04.06
申请号
US19340716698
申请日期
1934.03.21
申请人
THE BARRETT COMPANY
发明人
RADASCH ARTHUR H.;BYWATER WILFRED M.
分类号
C07C37/00
主分类号
C07C37/00
代理机构
代理人
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地址
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