  We obtain minimal (2+1) and (2+2) dimensional global flat embeddings of
uncharged and charged dilatonic black holes in (1+1) dimensions, respectively.
Moreover, we obtain the Hawking temperatures and the black hole ones of these
dilatonic black holes. However, even though the minimal flat embedding
structures are mathematically meaningful, through this minimal embeddings the
proper entropies are shown to be unattainable, contrast to the cases of other
black holes in (2+1) or much higher dimensions.
