-
公开(公告)号：US2456025A
公开(公告)日：1948-12-14
申请号：US66865546
申请日：1946-05-10
Applicant: EMMETT SEIFERT
Inventor： EMMETT SEIFERT
CPC classification number: B01D35/14 , B01D21/003 , B01D21/02 , B01D21/2427 , B01D29/15 , B01D29/44 , B01D29/54 , B01D2201/0461
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
