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公开(公告)号：US2352454A
公开(公告)日：1944-06-27
申请号：US40926641
申请日：1941-09-02
Applicant: CHICAGO TELEPHONE SUPPLY CO
Inventor： SCHELLENGER NEWTON C , BUDD WILBERT H
CPC classification number: H01C1/014 , H05K3/308 , H05K3/3447 , H05K2201/09418 , H05K2201/10196 , H05K2201/10787 , H05K2201/10825 , H05K2201/10878 , H05K2203/1446 , Y10T29/49922 , Y10T403/49
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