1. Katsuyoshi Watanabe

    Katsuyoshi Watanabe – japoński polonista, profesor. Wikipedia (PL)

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  3. patents.justia.com

    Katsuyoshi Watanabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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