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发明名称
AUTOMATIC ULTRASONIC CLEANING METHOD FOR ROUND FILTER FOR POLYESTER FILM MANUFACTURING
摘要
申请公布号
KR1019920007674(B1)
申请公布日期
1992.09.14
申请号
KR1019900007259
申请日期
1990.05.21
申请人
发明人
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主分类号
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