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| 专利和商标局 (美国) | |||
| 〈美〉专利与商标局 | |||
| 美国专利商标局 | |||
| 专利与商标局美国 | |||
| 专利与商标局美 | |||
| 专利和商标局 | |||
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| 专利商标局 | |||
| 专利局 | |||
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| 专利与商标局美国商业部 | |||
| English thesaurus | |||
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| PTO; PTO (organization, USA) | |||
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Patent and Trademark Office : 3 phrases in 2 subjects |
| Advertising | 1 |
| Electronics | 2 |
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