| CRYSTALENS 1399368 · TMA758599 | BAUSCH & LOMB INCORPORATED | 10 Medical | Registered | 2010 |
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| CRYSTALEST 2221294 | an individual | 42 Science | Pending | 2022 |
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| Crystalys 2032516 · TMA1126343 · design | Allergan Pharmaceuticals International Limited | 5 Pharmaceuticals | Registered | 2022 |
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| CRYSTALS 1207355 · TMA640661 | Fellowes, Inc. | 9 Electronics | Registered | 2005 |
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| CRYSTALEX 0611101 · TMA361900 | Akzo Nobel Coatings Ltd. | 2 Paints | Registered | 1989 |
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| CRYSTALITES 1170738 · TMA614699 | Coats & Clark Inc. | 26 Sewing | Registered | 2004 |
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| CRYSTALEYES 1124953 · TMA584126 | Optik K & R Inc. | 9 Electronics | Registered | 2003 |
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| CROUSTILIS 1002059 · TMA530703 | SOCIÉTÉ INDUSTRIELLE LESAFFRE SOCIÉTÉ ANONYME | 1 Chemicals5 Pharmaceuticals16 Paper+1 | Registered | 2000 |
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| CRYSTALMET 0900095 | National Research Council of Canada | All goods and services | Protected | 1984 |
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| CRYSTAPLEX 0231136 · TMA102576 | Athletica Sport Systems Inc. | 1 Chemicals2 Paints6 Metal+7 | Registered | 1956 |
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| Crostice 2175836 · TMA1230143 | Dongguan Zhuoda Plastic Co. Ltd. | 12 Vehicles | Registered | 2024 |
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| CRYSTALIA 2172340 · TMA1221610 | VOLARIUM LLC | 21 Housewares | Registered | 2024 |
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| CRYSTAGEN 2060778 · TMA1164595 | GARMONIA, Ltd. | 5 Pharmaceuticals | Registered | 2023 |
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| CrystalTears 2047744 · TMA1150433 | an individual | 14 Jewellery | Registered | 2022 |
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| CRYSTAL 2030866 · TMA1129942 | SodaStream (Switzerland) GmbH | 6 Metal7 Machines21 Housewares | Registered | 2022 |
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| CRYSTALUX 2024690 · TMA1265079 | M S International, Inc. | 19 Building | Registered | 2024 |
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| CRYSTAL 1964346 · TMA1144973 | Bitfury Group Limited | 9 Electronics42 Science | Registered | 2022 |
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| CRYSTELLA 1871387 · TMA1082593 | Crystella Pty Limited | 11 Lighting21 Housewares32 Beer | Registered | 2020 |
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| CRYSTAL 1783685 · TMA976916 | Clotures Frontenac Inc. | 6 Metal19 Building | Registered | 2017 |
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| CRYSTEX 1773260 · TMA989240 | LATICRETE INTERNATIONAL, INC. | 19 Building | Registered | 2018 |
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| CRYSTAL 1762045 · TMA1012588 | Crystal Cruises Ltd. | 39 Transport | Registered | 2019 |
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| CRYSTAL 1757249 · TMA953698 | Universal Entertainment Corporation | 28 Toys | Registered | 2016 |
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| CRYSTAL 1719998 · TMA1049248 · design | Crystal Cruises Ltd. | 43 Restaurants | Registered | 2019 |
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| CRYSTAL 1719997 · TMA1049239 | Crystal Cruises Ltd. | 43 Restaurants | Registered | 2019 |
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| CRYSTAL 1699833 · TMA982943 | Rijk Zwaan Zaadteelt en Zaadhandel B.V. A company organised and existing under the laws of The Netherlands | 31 Fresh | Registered | 2017 |
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