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公开(公告)号：US2278592A
公开(公告)日：1942-04-07
申请号：US33115640
申请日：1940-04-23
Applicant: STACKPOLE CARBON CO
Inventor： SANDERS VERNON H , SCHABERL NORBERT J , SHOBERT ERLE I
IPC: H01H1/023
CPC classification number: H01H1/0231 , Y10T29/49204 , Y10T428/12139
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