Document Type and Number:
Japanese Patent JPS504658
Kind Code:
U
Application Number:
JP5541173U
Publication Date:
January 18, 1975
Filing Date:
May 14, 1973
Export Citation:
International Classes:
H01J29/02; H01J29/07; H01J31/20; (IPC1-7): H01J29/07; H01J31/20
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