Proof of Authenticity     Description         The document above certifies that Stephane GREFFET successfully completed the course HDMI 1.4a on 2022-09-23 as taught by Bernard DAUTREVAUX.           Contact us Email : training@ac6-training.com Phone : +33(0)1 41 16 80 10 Website : www.ac6-training.com Address : 21 Rue Pierre Curie, 92400 Courbevoie - France