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| 0000051644-18-000043-index.html | 2018-07-25 15:23:48 | |
| 0000051644-18-000043.txt | 2018-07-25 15:23:48 | |
| ipgq22018transcript8-k.htm | 19698 | 2018-07-25 15:23:48 |
| ipgq22018transcriptexhibit.htm | 293011 | 2018-07-25 15:23:48 |