EP 2 755 318 B1 relates to a blind system.
Brief outline of the procedure
Claim 1 as granted, and of ARI and ARVIII+IX lacked N over D6=EP 2 551 440, PA under Art 54(3).
For the OD, ARIII did not satisfy the requirements of R 80.
T 0561/23-Too many alternatives in an independent claim and R 80
by Daniel X. Thomas