| 申请日期 | 2025-07-08 | 申请号 | FR03015105 |
| 公开（公告）号 | FR2848862B1 | 公开（公告）日 | 2005-08-19 |
| 公开国别 | FR | 申请人省市代码 | 全国 |
| 申请人 | SAGAMI CHEMICAL METAL CO LTD | ||
| 简介 | The ring is made from a series of permanent rare-earth magnets, e.g. of neodymium-iron-boron, samarium-cobalt or similar, having a circular cross section, each in the shape of a cylinder, sphere, plane surface or disc. The lateral magnetic surfaces enable them to hold together in a ring of the required size; they are plated and have a coating of siliceous material. | ||
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