Document Type and Number:
Japanese Patent JPH0427550
Kind Code:
U
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Application Number:
JP6811390U
Publication Date:
March 04, 1992
Filing Date:
June 27, 1990
Export Citation:
International Classes:
H01J9/34; H01J9/20; H01J9/36; (IPC1-7): H01J9/34; H01J9/20
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