CHANG MEDIUM by FUJIFILM IRVINE SCIENTIFIC, INC. (Track this)
Intl: (005) Pharmaceuticals US: 006 Filing date: 17-Dec-1981 Serial number: 73342083
YOUNG CHANG by HDC YOUNG CHANG CO., LTD. (Track this)
Intl: (015) Musical Instruments US: 002; 021; 036 Filing date: 30-Jun-1978 Serial number: 73176796