| 654 |
Telecommunication and telecontrol (organization,
services) |
| 655 |
Graphic industries. Printing. Publishing.
Book trade |
| 656 |
Transport and postal services. Traffic
organization and control |
| 657 |
Accountancy |
| 658 |
Business management, administration.
Commercial organization |
| 659 |
Publicity. Information work. Public relations |