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公开(公告)号：US2725539A
公开(公告)日：1955-11-29
申请号：US43133554
申请日：1954-05-21
Applicant: ELASTIC STOP NUT CORP
Inventor： MERRILL LESLIE M , KARLSON GUSTAV V , OESTNAES MARTHA P
CPC classification number: H01F27/022 , H01F41/005
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