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公开(公告)号：US2284621A
公开(公告)日：1942-06-02
申请号：US27173039
申请日：1939-05-04
Applicant: CUTLER HAMMER INC
Inventor： KUHN CLARENCE W , ROSING THEODORE F , STEVENS WILLIAM C
IPC: H01H50/64
CPC classification number: H01H50/645
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