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Document Type and Number:
Japanese Patent JPS5299764
Kind Code:
U
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Application Number:
JP795876U
Publication Date:
July 28, 1977
Filing Date:
January 27, 1976
Export Citation:
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International Classes:
H01J29/88; H01J29/86; H01J31/20; (IPC1-7): H01J29/86



 
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