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公开(公告)号：US3381253A
公开(公告)日：1968-04-30
申请号：US53185966
申请日：1966-03-04
Applicant: VICTORY ENGINEERING CORP
Inventor： MEYER SAPOFF , JACOBS BARRY B , FROEMEL JOHN G
IPC: H01C7/04
CPC classification number: H01C7/04
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