David Roux-Fouillet, 2020, Patent, US Patent for “KeyStone“, innovation in stone setting and production methods for jewellery . Item availability may be restricted.
David Roux-Fouillet, 2018, Patent, Chinese Patent for “KeyStone“, innovation in stone setting and production methods for jewellery . Item availability may be restricted.
David Roux-Fouillet, 2017, Patent, European Patent for “KeyStone“, innovation in stone setting and production methods for jewellery . Item availability may be restricted.
David Roux-Fouillet, 2016, Patent, Japanese Patent for “KeyStone“, innovation in stone setting and production methods for jewellery . Item availability may be restricted.