arnoldclark.com

E1Gyd TIL in 1952 a chemist was helping out a milk truck driver complaining about the smell of rotten milk in his truck by extracting oils from evergreen trees. 2 years later he patent his “odor-destroying, air-perfuming substances,” invention shaped like a little tree with a string attached to it.
p8ZdO TIL that Volvo opened up the patent for three-point seatbelt cause "it had more value as a free life saving tool than something to profit from"
gMdaA TIL that Volvo opened up the patent for three-point seatbelt cause "it had more value as a free life saving tool than something to profit from"