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Suzhou Good Star Optical Co., Ltd.
| Suzhou Good Star Optical Co., Ltd. Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20080284977 | Progressive Multi-Focal Lens - A kind of wide visual field mediate to near distances progressive multi-focal lens, it belongs to spectacle or same spectacle's characteristic protective lens, which consists of near and intermediate visual areas, the described lens has progressive surfaces which designed gradually step by step with different diopters in the mediate intermediate and near visual areas. | 11-20-2008 |