Environmental control apparatus Trademarks Filed in October 27, 1970
DU PONT
Filed: October 27, 1970
FREEZERS
Owned by: E. I. DU PONT DE NEMOURS AND COMPANY
Serial Number: 72374417
FREON
Filed: October 27, 1970
FREEZERS
Owned by: E. I. DU PONT DE NEMOURS AND COMPANY
Serial Number: 72374418