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2016
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Invention
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Multi-function writing tool. The present invention relates to a multi-function writing tool inclu... |
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Invention
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Wave power generator using pendulum movement and sea marker buoy using same. According to the pre... |
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2015
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Invention
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Umbrella provided with cane. The present invention relates to an umbrella provided with a cane, w... |
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Invention
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Umbrella holder. The present invention relates to an umbrella holder of an umbrella providing bod... |
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Invention
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Pendulum electricity-generating device using natural energy.
The present invention relates to a ... |
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Invention
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Pendulum electricity-generating device using natural energy. The present invention relates to a p... |
