Document Type and Number:
Japanese Patent JPS55118472
Kind Code:
U
Application Number:
JP1779479U
Publication Date:
August 21, 1980
Filing Date:
February 16, 1979
Export Citation:
International Classes:
H01J49/04; G01N27/62; G08B21/00; (IPC1-7): H01J49/04; G01N27/62; G08B21/00