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| 0000051644-19-000041-index.html | 2019-07-24 11:24:34 | |
| 0000051644-19-000041.txt | 2019-07-24 11:24:34 | |
| ipgq22019transcript8-k.htm | 22015 | 2019-07-24 11:24:34 |
| ipgq22019transcriptexhibit.htm | 592934 | 2019-07-24 11:24:34 |