Alfamacchine / Minigraf / AMP brand names

Since Fletcher purchased Alfamacchine their UK brand name 'Minigraf' seems to be slowly disappearing, although using different names in different countries is slightly confusing the brand names referred to on this website "Alfamacchine, Minigraf, Amp" are all the same.

it would make more sense to use only one brand name but they don't.

*edit: some underpinners were also branded using the Bohle name.