![[ICO]](/icons/blank.gif){kind=icon}
![[PARENTDIR]](/icons/back.gif){kind=icon}
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| Name | Last modified | Size | Description |
|---|---|---|---|---|
| Parent Directory | - | ||
| US2897482A.pdf | 2019-11-22 21:15 | 415K | |
| US2802203A.pdf | 2019-11-22 21:15 | 605K | |
| pat2691157.pdf | 2019-11-22 21:15 | 806K | |
| pat2691152.pdf | 2019-11-22 21:15 | 1.0M | |
| pat2691153.pdf | 2019-11-22 21:15 | 1.1M | |
| pat2691155.pdf | 2019-11-22 21:15 | 1.5M | |