| DNC 2258267 · TMA1276488 | an individual | 21 Housewares | Registered | 2024 |
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| DNG 1699755 · TMA919672 · design | Nassrallah Law Offices Professional Corporation | 45 Legal | Registered | 2015 |
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| DNS+ 1626492 · TMA899418 · design | Shenzhen D&S Industries Ltd. | 7 Machines9 Electronics11 Lighting+6 | Registered | 2015 |
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| DNJ 1529290 · TMA871854 | DNJ ENGINE COMPONENTS, INC. | 7 Machines | Registered | 2014 |
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| DNC 1186754 · TMA630361 · design | Delaware North Companies, Inc. (a corporation of the State of Delaware) | 35 Advertising | Registered | 2005 |
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| DMZ 0923434 · design | Ryerson University | All goods and services | Protected | 2015 |
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| DMZ 0920485 | Ryerson University | All goods and services | Protected | 2010 |
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| DANZE 1577826 · TMA854583 · design | Canadian Tire Corporation, Limited | 6 Metal11 Lighting20 Furniture+3 | Registered | 2013 |
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| DANZO 1570048 · TMA899819 | LES ENTREPRISES DANZO INC. | 9 Electronics35 Advertising42 Science | Registered | 2015 |
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| DANZE 1387700 · TMA775124 · design | Canadian Tire Corporation, Limited | 6 Metal11 Lighting20 Furniture+3 | Registered | 2010 |
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| DANZE 0759968 · TMA444814 | Canadian Tire Corporation, Limited | 9 Electronics11 Lighting20 Furniture | Registered | 1995 |
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| DONZI 0292936 · TMA151185 | American Marine Holdings, LLC a Delaware limited liability company | 12 Vehicles | Registered | 1967 |
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| DENZA 2332835 · design | BYD COMPANY LIMITED | 12 Vehicles | Pending | 2024 |
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| DENZA 2332833 · design | BYD COMPANY LIMITED | 37 Construction | Pending | 2024 |
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| DANZA 2310371 | Myth Realm International Inc | 11 Lighting20 Furniture | Pending | 2024 |
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| DANZE 2248218 · design | Canadian Tire Corporation, Limited | 1 Chemicals6 Metal11 Lighting+4 | Pending | 2023 |
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| DANZE 2248217 | Canadian Tire Corporation, Limited | 1 Chemicals6 Metal11 Lighting+5 | Pending | 2023 |
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| DANZE 2248216 · design | Owner not listed | 1 Chemicals6 Metal11 Lighting+4 | Pending | 2023 |
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| dmzk 2207849 · TMA1241554 | Shenzhen Enzege Technology Co. Ltd. | 21 Housewares | Registered | 2024 |
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| DENX 2195511 · TMA1237262 · design | DENX INTERNATIONAL COMPANY LIMITED | 9 Electronics | Registered | 2024 |
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| Dinaza 2171227 · TMA1221531 | SUI CHENG LIMITED | 20 Furniture | Registered | 2024 |
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| DONJ 2073139 · TMA1282244 · design | DONJ JEWELLERY INC. | 14 Jewellery35 Advertising | Registered | 2025 |
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| DUNK. 1833396 · TMA1119504 · design | SCS MANUFACTURING INC. | 1 Chemicals3 Cosmetics5 Pharmaceuticals+9 | Registered | 2022 |
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| DANG 1774181 · TMA1052495 | Safe Catch, Inc. | 29 Meat30 Coffee | Registered | 2019 |
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| DING 1746069 · TMA950086 | Ezetop Limited | 35 Advertising36 Finance38 Telecommunications | Registered | 2016 |
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