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公开(公告)号：US2762880A
公开(公告)日：1956-09-11
申请号：US35432453
申请日：1953-05-11
Applicant: STACKPOLE CARBON CO
Inventor： HATHORN CLARENCE J , SCHREIBER EDWARD J
IPC: H01H15/06
CPC classification number: H01H15/06
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