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公开(公告)号：US2025564A
公开(公告)日：1935-12-24
申请号：US64879032
申请日：1932-12-24
Applicant: GEN ELECTRIC
Inventor： BLAKE HAROLD D
IPC: F21S4/00
CPC classification number: F21S4/10
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公开(公告)号：US2006155A
公开(公告)日：1935-06-25
申请号：US66722333
申请日：1933-04-21
Applicant: GEN ELECTRIC
Inventor： BLAKE HAROLD D
IPC: H01K1/46
CPC classification number: H01K1/46
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