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公开(公告)号：US2549436A
公开(公告)日：1951-04-17
申请号：US10979649
申请日：1949-08-11
Applicant: PETROLITE CORP
Inventor： DE GROOTE MELVIN , WIRTEL ARTHUR F , PETTINGILL OWEN H
IPC: C10G33/04
CPC classification number: C10G33/04
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