FERROMASTER C456
Filed: September 6, 2019
Component part of blank audio tapes sold as part of the finished product; blank audio tapes
Owned by: National Audio Co.
Serial Number: 88607019
FERROMASTER C256
Filed: April 13, 2022
Component part of blank audio tapes sold as part of the finished product; Blank bulk audio tape
Owned by: National Audio Co.
Serial Number: 97361555
FERROMASTER C756
Filed: April 13, 2022
Component part of blank audio tapes sold as part of the finished product; Blank bulk audio tape
Owned by: National Audio Co.
Serial Number: 97361571
FERROMASTER C456
Filed: April 13, 2022
Component part of blank audio tapes sold as part of the finished product; Blank bulk audio tape
Owned by: National Audio Co.
Serial Number: 97361583
MAGNE-SHEEN
Filed: December 10, 2022
Cassette tape coating and finishing process
Owned by: National Audio Co.
Serial Number: 97712190
