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发明名称
CARBON AND DUPLICATING PAPER
摘要
申请公布号
CA736892(A)
申请公布日期
1966.06.21
申请号
CAD736892
申请日期
申请人
COLUMBIA RIBBON AND CARBON MANUFACTURING CO.
发明人
EDGAR KRUMBEIN;SIGO MUSCHTER
分类号
主分类号
代理机构
代理人
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