TELEPHONE TERMINAL EQUIPMENT

PURPOSE:To eliminate the anxiety of consuming a battery much more owing to information by ringing a warning tone at the time of off-hooking a handset when the battery is consumed. CONSTITUTION:When the battery 85 is consumed, the warning tone of 100m second width rings twice at the intervals of 100m...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NAKAMURA KIMITOSHI, KOYAMA KEIICHI, SHIBA MICHIO, MITSUTAKE YUICHIRO, TANAKA MASANORI, IZUKA KAZUHIRO, IMAHORI TETSUYA, MASUOKA KENZO, ARAI TAKAHISA, SAITO MASAKUNI
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION
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