Viva-Tonal Grafonola Designer (Person) Unknown Manufacturer Unknown Manufactured for Columbia Phonograph Company Date 1940 - 1949 (circa)
Champion 784 radio Designer (Person) Unknown Manufacturer Champion Electric Corporation Date 1952 (circa)
Connevans SO4 cassette recorder Designer (Person) Unknown Manufacturer Connevans Date 1970 - 1979 (circa)