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| 0000924168-23-000010.txt | 2023-01-23 16:25:41 | |
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| efoi-20230117.htm | 61315 | 2023-01-23 16:25:41 |
| efoi-20230117.xsd | 1920 | 2023-01-23 16:25:41 |
| efoi-20230117_htm.xml | 10834 | 2023-01-23 16:25:41 |
| efoi-20230117_lab.xml | 23832 | 2023-01-23 16:25:41 |
| efoi-20230117_pre.xml | 12520 | 2023-01-23 16:25:41 |
| ex101efoijan2023pipespavf.htm | 230577 | 2023-01-23 16:25:41 |
| ex102efoijan2022rravf.htm | 144695 | 2023-01-23 16:25:41 |
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