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公开(公告)号：US2236629A
公开(公告)日：1941-04-01
申请号：US14824737
申请日：1937-06-14
Applicant: PARKER ROSS E
Inventor： PARKER ROSS E
IPC: B01D17/02 , C10G33/06 , C10M175/00 , F16N39/00
CPC classification number: C10M175/0033 , B01D17/0211 , C10G33/06 , F16N39/005
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