Chronological telephone system

Assignee

• Hitachi

Inventors

• Masaru Ohki (42 patents)
• Hirohiko Sagawa (15 patents)
• Tomoko Sakiyama (6 patents)
• Hisashi Ikeda (15 patents)
• Hiromichi Fujisawa (54 patents)
• Nobuo Hataoka (18 patents)
• Youichi Kaneko (8 patents)

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