Article 740 Federal Labor Law

When in the complaint the name of the employer or of the company in which the employee works or worked has not been expressed, the personal notification thereof shall be subject to the procedure established in article 743 of this Law insofar as applicable, and the bailiff must make sure that the place where he makes the notification is precisely the one indicated by the plaintiff, and the notification shall be understood as made to the employer, even if at the time of making it the name thereof is unknown.