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Subclass L
| L7-991 | Education (General) | ||
| L7-97 | Periodicals. Societies | ||
| L101 | Yearbooks | ||
| L107 | Congresses | ||
| L111-791 | Official documents, reports, etc. | ||
| L797 898 | Educational exhibitions and museums | ||
| L899 | School fairs | ||
| L900-991 | Directories of educational institutions | ||
