It’s a little known fact that the Brother EM-411 sold in the USA and Canada (and sold as the CE-650 in Europe and Australia) is the same typewriter as the Xerox Memowriter (apart from obvious differences in their body shells and keyboards) .
A two-year agreement struck between the Xerox Corporation of America and Brother Industries in December 1986, allowed Xerox to manufacture several models of an electronic typewriter, designed by Brother, at their plant in Fremont, California. – that is, manufacture “Brother” typewriters and at least one “Xerox” typewriter,
Brother models manufactured by Xerox were the EM-401 and the EM-411 (below).
“Xerox” models were the Memowriter and (from 1989 onwards) the Xerox XT-15, which both appear to be based on the same design.