Title:
【発明の名称】交換機における異常監視方式
Document Type and Number:
Japanese Patent JP2536115
Kind Code:
B2
Inventors:
MATSUMOTO NAOAKI
Application Number:
JP933289A
Publication Date:
September 18, 1996
Filing Date:
January 17, 1989
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
H04M3/22; H04M3/26; (IPC1-7): H04M3/22; H04M3/26
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)