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| 0000077360-22-000015-index.html | 2022-04-21 16:36:28 | |
| 0000077360-22-000015.txt | 2022-04-21 16:36:28 | |
 0000077360-22-000015-xbrl.zip | 255552 | 2022-04-21 16:36:28 |
| ex311ceocertificationq12022.htm | 9132 | 2022-04-21 16:36:28 |
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| report.css | 2767 | 2022-04-21 16:36:28 |
| Show.js | 1085 | 2022-04-21 16:36:28 |