  We complete the Wilf classification of signed patterns of length 5 for both
signed permutations and signed involutions. New general equivalences of
patterns are given which prove Jaggard's conjectures concerning involutions in
the symmetric group avoiding certain patterns of length 5 and 6. In this way,
we also complete the Wilf classification of S_5, S_6, and S_7 for both
permutations and involutions.
