Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000009346-21-000034-index-headers.html | 2021-05-06 09:39:24 | |
| 0000009346-21-000034-index.html | 2021-05-06 09:39:24 | |
| 0000009346-21-000034.txt | 2021-05-06 09:39:24 | |
 0000009346-21-000034-xbrl.zip | 17621 | 2021-05-06 09:39:24 |
| FilingSummary.xml | 1801 | 2021-05-06 09:39:24 |
| Financial_Report.xlsx | 5772 | 2021-05-06 09:39:24 |
| form8k.htm | 45676 | 2021-05-06 09:39:24 |
| form8k_htm.xml | 5943 | 2021-05-06 09:39:24 |
| MetaLinks.json | 23888 | 2021-05-06 09:39:24 |
| pressrelease.htm | 12066 | 2021-05-06 09:39:24 |
| ptvc-20210505.xsd | 4440 | 2021-05-06 09:39:24 |
| ptvc-20210505_def.xml | 17711 | 2021-05-06 09:39:24 |
| ptvc-20210505_lab.xml | 27115 | 2021-05-06 09:39:24 |
| ptvc-20210505_pre.xml | 19897 | 2021-05-06 09:39:24 |
| R1.htm | 42806 | 2021-05-06 09:39:24 |
| report.css | 2767 | 2021-05-06 09:39:24 |
| Show.js | 1085 | 2021-05-06 09:39:24 |