Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000009346-21-000009-index-headers.html | 2021-02-16 07:05:45 | |
| 0000009346-21-000009-index.html | 2021-02-16 07:05:45 | |
| 0000009346-21-000009.txt | 2021-02-16 07:05:45 | |
 0000009346-21-000009-xbrl.zip | 138356 | 2021-02-16 07:05:45 |
| exhibit10_1.htm | 178984 | 2021-02-16 07:05:45 |
| exhibit2_1.htm | 633201 | 2021-02-16 07:05:45 |
| exhibit99_1.htm | 24441 | 2021-02-16 07:05:45 |
| FilingSummary.xml | 1865 | 2021-02-16 07:05:45 |
| Financial_Report.xlsx | 5574 | 2021-02-16 07:05:45 |
| form8k.htm | 52804 | 2021-02-16 07:05:45 |
| form8k_htm.xml | 6106 | 2021-02-16 07:05:45 |
 image0.jpg | 41821 | 2021-02-16 07:05:45 |
| MetaLinks.json | 23944 | 2021-02-16 07:05:45 |
| ptvc-20210214.xsd | 4440 | 2021-02-16 07:05:45 |
| ptvc-20210214_def.xml | 17711 | 2021-02-16 07:05:45 |
| ptvc-20210214_lab.xml | 27115 | 2021-02-16 07:05:45 |
| ptvc-20210214_pre.xml | 19897 | 2021-02-16 07:05:45 |
| R1.htm | 44351 | 2021-02-16 07:05:45 |
| report.css | 2767 | 2021-02-16 07:05:45 |
| Show.js | 1085 | 2021-02-16 07:05:45 |