1. Legal character of appeal procedure

Catchword: 

- Binding effect of a referring decision (see Reasons, points 9 to 9.4.5)
- Interpretation of order no. 2 of G 2/21 (see Reasons, points 10 to 11.14, in particular points 11.10 and 11.14)
- Submissions based on earlier decisions of the boards of appeal
- admittance into the appeal proceedings (see Reasons, points 32 to 32.4, in particular point 32.3)