HEADPHONE WITH FUNCTION OF EXPRESSING ONE'S MIND, AND DENTAL CHAIR SET

PROBLEM TO BE SOLVED: To provide a headphone with a function of expressing one's mind since a normal headphone is used by attaching it to existing audio equipment only for listening, with hardness for patients to express their minds during a dental treatment. SOLUTION: When the patient presses...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SEKI KIYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE DEAF-AID SETS DENTISTRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HUMAN NECESSITIES HYGIENE LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEDICAL OR VETERINARY SCIENCE PUBLIC ADDRESS SYSTEMS
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