发明名称 Pleated paper filter cartridge
摘要 A filter including a resilient frame, a hollow body of pleated paper, and end closures, molded together to make a flexible unitary structure which maintains its shape and has the efficiency characteristics of the paper medium.
申请公布号 US4187091(A) 申请公布日期 1980.02.05
申请号 US19780931770 申请日期 1978.08.07
申请人 DONALDSON CO INC 发明人 BERVEN, RICHARD P;DURRE, REYNOLD F
分类号 B01D46/02;B01D46/52;(IPC1-7):B01D46/00 主分类号 B01D46/02
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