Railway traffic safety facility (term considered too vague by the International Bureau - rule 13 (2) (b) of the Common Regulations); nets for protection against accidents; safety nets; safety nets; safety mask (term considered too vague by the International Bureau - rule 13 (2) (b) of the Common Regulations); seat belt (for non-car seats and sports equipment) (term considered too vague by the International Bureau - rule 13 (2) (b) of the Common Regulations); protection devices for personal us...