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公开(公告)号：US2964665A
公开(公告)日：1960-12-13
申请号：US55033055
申请日：1955-12-01
Applicant: TRACERLAB INC
Inventor： BRINKERHOFF JORIS M , HARRIS SIGMUND P
IPC: H05H3/06
CPC classification number: H05H3/06
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