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| 0000004127-18-000026-index.html | 2018-05-31 16:39:27 | |
| 0000004127-18-000026.txt | 2018-05-31 16:39:27 | |
| exhibit101conflictminerals.htm | 280042 | 2018-05-31 16:39:27 |
| formsd12312017.htm | 33577 | 2018-05-31 16:39:27 |