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公开(公告)号：US3215997A
公开(公告)日：1965-11-02
申请号：US26480063
申请日：1963-03-13
Applicant: LITTLE INC A
Inventor： LEAVITT PETER R , BERNARD VONNEGUT
CPC classification number: G08B21/185 , G01R29/24 , H02G13/00 , H02G13/60
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