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0001564590-21-038802-index-headers.html | 2021-07-29 06:05:57 | |
0001564590-21-038802-index.html | 2021-07-29 06:05:57 | |
0001564590-21-038802.txt | 2021-07-29 06:05:57 | |
pten-425.htm | 29672 | 2021-07-29 06:05:57 |
pten-ex991_6.htm | 1526176 | 2021-07-29 06:05:57 |