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发明名称
AIR-BREATHING POLYURETHANE LEATHER AND ITS PRODUCTION KNOW-HOW OF PROCESS AND MECHANISM
摘要
申请公布号
KR1019900005057(B1)
申请公布日期
1990.07.19
申请号
KR1019870006377
申请日期
1987.06.23
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主分类号
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