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公开(公告)号：US1547315A
公开(公告)日：1925-07-28
申请号：US68627724
申请日：1924-01-15
Applicant: HAROLD S BELL
Inventor： FULTON LUTHER D
IPC: B01D29/00
CPC classification number: B01D24/4694 , B01D24/105 , B01D2201/36
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公开(公告)号：US1722740A
公开(公告)日：1929-07-30
申请号：US22138527
申请日：1927-09-22
Applicant: HAROLD S BELL
Inventor： FULTON LUTHER D
IPC: C10G7/00
CPC classification number: C10G7/00
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