Derniers inventions, produits et services
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2018
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Invention
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Two-axis ball point pen. A two-axis ball point pen in which a core can be easily replaced is obta... |
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2016
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Invention
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Frame structure, and structure. [Problem] To provide a foldable frame structure, unfoldable into ... |
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Invention
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Frame structure, and structure. [Problem] To provide a foldable frame structure that expands into... |
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2015
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Invention
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Frame structure. A foldable frame structure that expands into a regular 2N-sided polygon (N being... |
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2014
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Invention
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Stand structure and stand assembly structure. A stand structure having a simple structure, where... |
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