Derniers inventions, produits et services
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2014
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Invention
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Anti-overflow fluid injecting bottle. An anti-overflow fluid injecting bottle comprises: a bottle... |
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Invention
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Pen ink sac capable of ink-filling and ink-suction. A pen ink sac capable of ink-filling and ink-... |
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2010
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Invention
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Erasable board structure. An erasable board structure comprises a face board mechanism (1), an er... |
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Invention
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Liquid filling bottle. A liquid filling bottle, including a bottle body (1), a fixing support (2)... |
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Invention
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Liquid-filling pen. A liquid-filling pen comprises a pen holder (1), a pen neck (2), a core seat ... |
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