Hand-held tone generator for equalizing binaural hearing aids
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 14, 1992
Issued Date -
N/A
app pub date -
Oct 30, 1990
filing date -
Jan 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
Audible tone generators, particularly a hand-held tone generator for generating an audible tone as a test for equalizing binaural hearing aids. The circuit is characterized by its 'fountain pen' size, as well as its extreme simplicity and reliability.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully