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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS52111562
Kind Code:
U
Application Number:
JP1004877U
Publication Date:
August 24, 1977
Filing Date:
February 01, 1977
Export Citation:
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International Classes:
H01J31/50; H01J31/08; (IPC1-7): H01J31/08
Domestic Patent References:
JP37003682A