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公开(公告)号：US1958803A
公开(公告)日：1934-05-15
申请号：US59642432
申请日：1932-03-03
Applicant: SHALER COMPANY
Inventor： SEGNITZ PAUL H
IPC: C10L5/40
CPC classification number: C10L5/40 , Y02E50/30 , Y10S44/901
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