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发明名称
摘要
申请公布号
DE2137982(C2)
申请公布日期
1983.12.01
申请号
DE19712137982
申请日期
1971.07.29
申请人
NOLD, WALTER EDWIN, NATICK, MASS., US
发明人
NOLD, WALTER EDWIN, NATICK, MASS., US
分类号
B01D19/00;C02F1/20;C02F1/36;(IPC1-7):B01D19/00
主分类号
B01D19/00
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