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发明名称
PIPERAZINE POLYETHER URETHANEAMIDE COPOLYMER ELASTOMERS
摘要
申请公布号
CA759112(A)
申请公布日期
1967.05.16
申请号
CAD759112
申请日期
申请人
E.I. DU PONT DE NEMOURS AND COMPANY
发明人
WILLIAM K. WITSIEPE
分类号
主分类号
代理机构
代理人
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