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公开(公告)号：US2916681A
公开(公告)日：1959-12-08
申请号：US54574255
申请日：1955-11-08
Applicant: BELL TELEPHONE LABOR INC
Inventor： BRADY GEORGE W , FLASCHEN STEWARD S
IPC: C04B35/468 , G11C11/22 , H01B1/08 , H01F7/16 , H01G7/02
CPC classification number: C04B35/4682 , G11C11/22 , H01B1/08 , H01F7/1638 , H01G7/025
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