72285525
Nov 24, 1967
Mar 3, 1970
DEVICES FOR MODIFYING THE ELECTRICAL TONE SIGNALS OF ELECTRICAL MUSICAL INSTRUMENTS, ELECTRIFIED STRING AND BAND INSTRUMENTS HAVING SUCH DEVICES, ELECTRONIC AMPLIFIERS FOR MUSICAL INSTRUMENTS WHEREIN THE AMPLIFIERS HAVE SUCH DEVICES, AND DEVICES FOR CREATING ELECTRICAL SIGNALS FOR USE IN ELECTRONIC MUSICAL INSTRUMENTS
Insurance and Financial