-
公开(公告)号：US2223623A
公开(公告)日：1940-12-03
申请号：US12254937
申请日：1937-01-27
Applicant: INTERNAT FILTER CO
Inventor： KOUPAL ROBERT J , GREEN WALTER H
CPC classification number: B01D24/005 , B01D24/22 , B01D24/4631 , B01D2201/208 , Y10T137/7759
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
