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公开(公告)号：US3458759A
公开(公告)日：1969-07-29
申请号：US3458759D
申请日：1967-11-03
Applicant: CURRENT CONTROL DEVICES INC
Inventor： CHASE WILLIAM L
CPC classification number: H05B37/0254 , Y10T307/74 , Y10T307/944
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