ref. PAT-10516
PATRAL
ref. PAT-10587
ref. PAT-10050
ref. PAT-10069
ref. PAT-10077
ref. PAT-10514
ref. PAT-10615
ref. PAT-10494
ref. PAT-10515
ref. PAT-10517
ref. PAT-10513
ref. PAT-10479