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| Name | Last modified | Size | Description |
|---|---|---|---|---|
| Parent Directory | - | ||
| US4979055_1989.pdf | 2023-10-08 17:22 | 3.2M | |
| US4639863_1985.pdf | 2023-10-08 17:22 | 3.2M | |
| US6279108_1993.pdf | 2023-10-08 17:22 | 3.0M | |
| US4622499_1985.pdf | 2023-10-08 17:22 | 2.6M | |
| US5521768_1994.pdf | 2023-10-08 17:22 | 1.7M | |
| US4825321_1987.pdf | 2023-10-08 17:22 | 1.4M | |
| US4979056_1987.pdf | 2023-10-07 05:41 | 1.1M | |
| US5121262_1991.pdf | 2023-10-08 17:22 | 909K | |
| US5050016_1989.pdf | 2023-10-08 17:22 | 806K | |
| US4628379_1984.pdf | 2023-10-08 17:22 | 803K | |
| EP0494869B1_1990.pdf | 2023-10-08 17:22 | 419K | |
| EP0251785B1_1987.pdf | 2023-10-20 13:28 | 409K | |
| EP0556324B1_1991.pdf | 2023-10-08 17:22 | 353K | |