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公开(公告)号：US3372720A
公开(公告)日：1968-03-12
申请号：US45114065
申请日：1965-04-27
Applicant: TRANSVENTOR AKTIEBOLAG
Inventor： AF SEGERSTAD CARL GUSTAF HARD
IPC: B27L1/05
CPC classification number: B27L1/05
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