Title:
【発明の名称】ボタン電話制御方式
Document Type and Number:
Japanese Patent JPS5919504
Kind Code:
B2
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Inventors:
ARIIZUMI YOSHIO
Application Number:
JP3208778A
Publication Date:
May 07, 1984
Filing Date:
March 20, 1978
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H04M11/06; H04M3/00; H04M3/42; H04M9/00; H04M11/00; H04Q5/20; H04Q11/04; (IPC1-7): H04M3/42
Attorney, Agent or Firm:
Kugoro Tamamushi