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公开(公告)号：US2241899A
公开(公告)日：1941-05-13
申请号：US20497038
申请日：1938-04-29
Applicant: INT STANDARD ELECTRIC CORP
Inventor： ANDREW BROWN , MABBOTT WOODWARD EDWARD EGERTO
IPC: B61L27/00
CPC classification number: B61L27/0038
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