Document Type and Number:
Japanese Patent JPS641970
Kind Code:
B2
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Inventors:
KONNO TETSUO
Application Number:
JP155380A
Publication Date:
January 13, 1989
Filing Date:
January 10, 1980
Export Citation:
Assignee:
SEIKOSHA KK
International Classes:
H03B5/32; H03B5/36; H03L1/02
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