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小さな発明家たち: 発明のアイデアを考える方法!
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This inventor made over 1 million! Have an idea 🛡️? Contact us! #thepatentprofessor
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発明家の簡単なヒント – アイデアを文書化する
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Young inventors showcase their creative ideas at the Children's Business Fair in Longwood
発明家になるには! |キッド・プレジデント