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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 |