'DuPont owns the trademark to this refrigerant gas, introduced in the 1930s to replace hazardous substances'
Freon
IT'S A GAS!: DuPont owns the trademark to this refrigerant gas, introduced in the 1930s to replace hazardous substances
DuPont owns the trademark to this refrigerant gas, introduced in the 1930s to replace hazardous substances
DuPont owns the trademark to this refrigerant gas, introduced in the 1930s to replace hazardous substances
IT'S A GAS!
Freon
IT'S A GAS!