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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4737059
Kind Code:
Y1
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Application Number:
JP12271371U
Publication Date:
November 09, 1972
Filing Date:
December 28, 1971
Export Citation:
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International Classes:
H01J9/233; H01J29/38; H01J31/36; H01J40/02; (IPC1-7): H01J29/38; H01J31/36; H01J39/16



 
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