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| 5677029 | Prevorsek et al. | Oct 1997 | |
| 5724670 | Price | Mar 1998 | |
| 5773370 | Dunbar et al. | Jun 1998 | |
| 5776838 | Dellinger | Jul 1998 | |
| 5788907 | Brown, Jr. et al. | Aug 1998 | |
| 5839247 | Beck | Nov 1998 | |
| 5918309 | Bachner, Jr. | Jul 1999 | |
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| 5965223 | Andrews et al. | Oct 1999 |
| Entry |
|---|
| Toyobo Co., Ltd., PBO Fiber Zylon™ New High Performance Fiber Pioneered by Toyobo, Undated, (6) Pages, by Toyobo Co., Ltd., Osaka, Japan. |