Dark-Color Photoluminescent Material
Patent No. EP4574922 (titled "Dark-Color Photoluminescent Material") was filed by The Swatch Group Research on Dec 21, 2023. The application was issued on Jun 25, 2025.
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EP4574922
- Application Number
- EP23219378A
- Filing Date
- Dec 21, 2023
- Status
- Published
- May 23, 2025
- Publication Date
- Jun 25, 2025
- External Links
- Slate, Register , Google Patents