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公开(公告)号：US1408228A
公开(公告)日：1922-02-28
申请号：US29424219
申请日：1919-05-02
Applicant: SIRCH CHARLES W
Inventor： SIRCH CHARLES W
IPC: B01D24/14
CPC classification number: B01D24/14 , B01D24/461 , B01D24/4631
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公开(公告)号：US1221234A
公开(公告)日：1917-04-03
申请号：US10280116
申请日：1916-06-09
Applicant: SIRCH CHARLES W
Inventor： SIRCH CHARLES W
CPC classification number: B64B1/62
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