Wikipedia says it was first marketed only 3 years earlier so it was pretty new https://en.wikipedia.org/wiki/Poly(methyl_methacrylate) https://en.wikipedia.org/

Wikipedia says it was first marketed only 3 years earlier so it was pretty new https://en.wikipedia.org/wiki/Poly(methyl_methacrylate) https://en.wikipedia.org/wiki/Poly(methyl_methacrylate)