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发明名称
Filament failure device for electronic tubes
摘要
申请公布号
US2576014(A)
申请公布日期
1951.11.20
申请号
US19490084806
申请日期
1949.04.01
申请人
SORENSEN & COMPANY, INC.
发明人
JR. LEO L. HELTERLINE,;JR. MARCELLUS BEST,;BUNBLASKY ADOLPH
分类号
H01J1/15
主分类号
H01J1/15
代理机构
代理人
主权项
地址
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