Yes, now that we have many models being sold in the same form right across Europe, I've seen many such ranges arranged in this way. All the individual elements are 230V wired phase to neutral, but distributed between the 3 phases.
When we use them in a British domestic kitchen we just strap the L1, L2, L3 terminals together.
I've also seen quite a few older U.K. made ranges (say early 1970s) which were wired internally to a single pair of L1 and N terminals, but the terminal block had empty positions clearly labeled L2 and L3, which must have been used for export versions.
