4 Utility Patents
#1 in St. Irvine, CA
#118,794 in California
#477,669 in US
Forward Citations = 155
Company Filing History:
Sound Advance Systems, Inc.
Bertagni Electronic Sound Transducers, International Corporation
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#1 in St. Irvine, CA
#118,794 in California
#477,669 in US
Company Filing History:
Get your Inventor Badge Today