Document Type and Number:
Japanese Patent JPS54162759
Kind Code:
U
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Application Number:
JP6091978U
Publication Date:
November 14, 1979
Filing Date:
May 06, 1978
Export Citation:
International Classes:
H01J41/16; H01J23/00; H01J41/00; (IPC1-7): H01J23/00; H01J41/00