They were definitely available in the early eighties: https://www.nytimes.com/1984/11/23/business/typewriters-of-electronic-era.html https://www.nytimes.com/198

They were definitely available in the early eighties: https://www.nytimes.com/1984/11/23/business/typewriters-of-electronic-era.html https://www.nytimes.com/1984/11/23/business/typewriters-of-e...