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| patent document | |||
| patent paper | |||
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| patent documents | |||
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патентный документ : 13 phrases in 2 subjects |
| Librarianship | 1 |
| Patents | 12 |
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| patent document | |||
| patent paper | |||
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| patent documents | |||
|
патентный документ : 13 phrases in 2 subjects |
| Librarianship | 1 |
| Patents | 12 |