  We analyze edge currents and edge bands at the surface of a time-reversal
symmetry breaking d_{x^2-y^2}+id_{xy} superconductor. We show that the currents
have large Friedel oscillations with two interfering frequencies: \sqrt{2}k_F
from sub-gap states, and 2 k_F from the continuum. The results are based
independently on a self-consistent slave-boson mean field theory for the t-J
model on a triangular lattice, and on a T-matrix scattering theory calculation.
The shape of the edge-state band, as well as the particular frequency
\sqrt{2}k_F of the Friedel oscillations are attributes unique for the
d_{x^2-y^2}+id_{xy} case, and may be used as a fingerprint for its
identification. Extensions to different time-reversal symmetry breaking
superconductors can be achieved within the same approach.
