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公开(公告)号：US2491237A
公开(公告)日：1949-12-13
申请号：US74877947
申请日：1947-05-17
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： WAY DONALD F
IPC: H01K3/00
CPC classification number: H01K3/00
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公开(公告)号：US2449786A
公开(公告)日：1948-09-21
申请号：US47811643
申请日：1943-03-05
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： LOCKWOOD GEORGE H , WAY DONALD F
IPC: H01K1/56
CPC classification number: H01K1/56 , Y10T428/12063
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