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公开(公告)号：US3257709A
公开(公告)日：1966-06-28
申请号：US22936362
申请日：1962-10-09
Applicant: STACKPOLE CARBON CO
Inventor： FERNAN WILLIAM J , HERBST WILLIAM J , SHOBERT II ERLE I
IPC: H01C17/28
CPC classification number: H01C17/28 , Y10T29/49082 , Y10T29/49101
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