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| patent expense | |||
| patent fee | |||
| patent expenses | |||
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专利费用 : 16 phrases in 10 subjects |
| Business | 3 |
| China | 1 |
| Commerce | 1 |
| Economy | 3 |
| General | 1 |
| Hydroelectric power stations | 1 |
| International trade | 3 |
| Multimedia | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
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