Two examples you might look into: Typewriter maker Olivetti. Beautiful mechanical design and innovation right up until the end of the typewriter era. They succ

Two examples you might look into: Typewriter maker Olivetti. Beautiful mechanical design and innovation right up until the end of the typewriter era. They successfully made computers for a while but couldn't compete in the long run. Coleco. From leather maker to Cabbage Patch dolls to video game consoles. Then bankrupt after the disaster that was the Coleco Adam computer.