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1.
公开(公告)号:US2780363A
公开(公告)日:1957-02-05
申请号:US32734152
申请日:1952-12-22
Applicant: INFILCO INC
Inventor: PEW PRESTON F
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公开(公告)号:US2663591A
公开(公告)日:1953-12-22
申请号:US21987651
申请日:1951-04-07
Applicant: INFILCO INC
Inventor: PEW PRESTON F
IPC: B05B1/14
CPC classification number: B05B1/14
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公开(公告)号:US2468603A
公开(公告)日:1949-04-26
申请号:US62362645
申请日:1945-10-22
Applicant: INFILCO INC
Inventor: PEW PRESTON F
CPC classification number: B01D36/001 , B01D29/114 , B01D29/48 , B01D29/52 , B01D29/661 , B01D29/90 , B01D2201/0446 , B01D2201/313
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