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公开(公告)号：US2841199A
公开(公告)日：1958-07-01
申请号：US60673756
申请日：1956-08-28
Applicant: VOELKEL HANS J , RUDOLF EHRMANN
Inventor： VOELKEL HANS J , RUDOLF EHRMANN
CPC classification number: B60C27/14 , B60C11/1612 , B60C27/00 , Y10T152/10279
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