John W. Silzel Trademarks
ELEKTRA PERFORMANCE SYSTEM
computer software for conversion of sound from a source musical instrument, involving pitch recognition to generate corresponding…
Owned by: John W. Silzel
Serial Number: 85282030
SILZEL PERFORMANCE SYSTEM
Filed: January 8, 2012
computer software for conversion of sound from a source musical instrument, involving pitch recognition to generate corresponding…
Owned by: John W. Silzel
Serial Number: 85511314
