Document Type and Number:
Japanese Patent JPS5349931
Kind Code:
U
Application Number:
JP13319076U
Publication Date:
April 27, 1978
Filing Date:
September 30, 1976
Export Citation:
International Classes:
H01J29/54; H01J31/20; H04N9/29; (IPC1-7): H04N9/29; H01J31/20