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公开(公告)号：US2425152A
公开(公告)日：1947-08-05
申请号：US66684146
申请日：1946-05-02
Applicant: BRIGGS FILTRATION COMPANY
Inventor： GREGER HERBERT H , REIMER JOHN J
IPC: C04B28/34
CPC classification number: C04B28/34 , Y10S210/07 , C04B14/04 , C04B14/10 , C04B14/303 , C04B18/025
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