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| 0000008063-18-000004-index.html | 2018-02-26 17:10:44 | |
| 0000008063-18-000004.txt | 2018-02-26 17:10:44 | |
| a8k123117earningsrelease.htm | 22268 | 2018-02-26 17:10:44 |
 atrocorp_image1a06.jpg | 42236 | 2018-02-26 17:10:44 |
| ex99120171231-pr.htm | 358943 | 2018-02-26 17:10:44 |