This page has been validated.
Subclass ZA
| ZA3038-5190 | Information resources (General) | |||
| ZA3150-3159 | Information services. Information centers | |||
| ZA3201-3250 | Information superhighway | |||
| ZA4050-4775 | Information in specific formats or media | |||
| ZA4050-4480 | Electronic information resources | |||
| ZA4150-4380 | Computer network resources | |||
| ZA4450-4460 | Databases | |||
| ZA4550-4575 | Motion pictures. Video recordings | |||
| ZA4650-4675 | Pictures. Photographs | |||
| ZA4750-4775 | Sound recordings | |||
| ZA5049-5190 | Government information | |||
