The lathe (assuming you mean Holzmann and not Hoffman) is an example of a genre. It is identical to every other mini-lathe of that size and specification, just with a unique paint job.
You might need to broaden your search term for more success.
If you find out the size/spec., you could start at http://www.mini-lathe.com/ and progress from there. The 400 in the name is the distance between centres, which translates to 16 x ?? in imperial measurements. In UK, it will be sold by Chester, Axminster, Warco, ArcEuroTrade, Armadeal. In Germany, maybe Optimum.
Being in France, are you aware of the usinages forum?