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公开(公告)号：US3411124A
公开(公告)日：1968-11-12
申请号：US60993767
申请日：1967-01-17
Applicant: STACKPOLE CARBON CO
Inventor： TOTAL ROBERT V , WITTMAN GEORGE W , SHIELDS BERNARD F
IPC: H01C1/146
CPC classification number: H01C1/146
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