  Kondo tunneling reveals hidden SO(n) dynamical symmetries of evenly occupied
quantum dots. As is exemplified for an experimentally realizable triple quantum
dot in parallel geometry, the possible values n=3,4,5,7 can be easily tuned by
gate voltages. Following construction of the corresponding o(n) algebras,
scaling equations are derived and Kondo temperatures are calculated. The
symmetry group for a magnetic field induced anisotropic Kondo tunneling is
SU(2) or SO(4).
