Communications: electrical – Audible indication – Ultrasonic pest control
Patent
1991-04-01
1993-11-30
Crosland, Donnie L.
Communications: electrical
Audible indication
Ultrasonic pest control
340384R, 381 682, G08B 300
Patent
active
052669190
ABSTRACT:
A programmable tone generator provides a signal that can be used by a hearing aid wearer to set the gain of the hearing aid such that the hearing threshold is at a prescribed corrected level.
REFERENCES:
patent: 3763488 (1973-10-01), Klasing
patent: 3981007 (1976-09-01), Cieslak et al.
patent: 4054869 (1977-10-01), Smith et al.
patent: 4471171 (1984-09-01), Kopke et al.
Boyd Leo
Cook Perry R.
Crosland Donnie L.
Kallman Nathan N.
LandOfFree
Tone generator for use with hearing aids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tone generator for use with hearing aids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tone generator for use with hearing aids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2099667