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Title:
【発明の名称】光交換機
Document Type and Number:
Japanese Patent JP2668129
Kind Code:
B2
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Inventors:
Masayasu Yamaguchi
Ikutaro Kobayashi
Application Number:
JP29433188A
Publication Date:
October 27, 1997
Filing Date:
November 21, 1988
Export Citation:
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Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04B10/27; H04B10/272; H04M3/00; H04Q3/52; H04Q3/72; H04Q11/00; (IPC1-7): H04M3/00; H04B10/02; H04Q3/72; H04Q11/00
Domestic Patent References:
JP55158794A
JP5923693A
Attorney, Agent or Firm:
Kugoro Tamamushi (1 outside)



 
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