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公开(公告)号：US3312132A
公开(公告)日：1967-04-04
申请号：US49801765
申请日：1965-10-19
Applicant: BASIC PRODUCTS CORP
Inventor： ROE JAMES W
IPC: H01F27/245 , H01F41/02
CPC classification number: H01F41/0233 , H01F27/245 , Y10S83/946 , Y10T83/0491 , Y10T83/0577
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