Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000066570-20-000018-index-headers.html | 2020-05-14 16:12:50 | |
| 0000066570-20-000018-index.html | 2020-05-14 16:12:50 | |
| 0000066570-20-000018.txt | 2020-05-14 16:12:50 | |
 0000066570-20-000018-xbrl.zip | 20531 | 2020-05-14 16:12:50 |
| a8-k2020annualmeeting.htm | 61786 | 2020-05-14 16:12:50 |
| a8-k2020annualmeeting_htm.xml | 4312 | 2020-05-14 16:12:50 |
 a8kimage1a13.jpg | 7880 | 2020-05-14 16:12:50 |
| FilingSummary.xml | 1793 | 2020-05-14 16:12:50 |
| Financial_Report.xlsx | 5792 | 2020-05-14 16:12:50 |
| MetaLinks.json | 18768 | 2020-05-14 16:12:50 |
| msa-20200512.xsd | 4467 | 2020-05-14 16:12:50 |
| msa-20200512_cal.xml | 645 | 2020-05-14 16:12:50 |
| msa-20200512_def.xml | 1495 | 2020-05-14 16:12:50 |
| msa-20200512_lab.xml | 26147 | 2020-05-14 16:12:50 |
| msa-20200512_pre.xml | 13601 | 2020-05-14 16:12:50 |
| R1.htm | 38619 | 2020-05-14 16:12:50 |
| report.css | 2767 | 2020-05-14 16:12:50 |
| Show.js | 1085 | 2020-05-14 16:12:50 |