Title:
【考案の名称】真空スイツチ管
Document Type and Number:
Japanese Patent JPS58173145
Kind Code:
U
Inventors:
Ryuji Yamanaka
Application Number:
JP4354283U
Publication Date:
November 19, 1983
Filing Date:
March 24, 1983
Export Citation:
International Classes:
H01H33/66; (IPC1-7): H01H33/66