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  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
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      "event": "第一号店とトレーニングセンターを開設",
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      "date": "1985/7",
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      "event": "B-R サーティワン アイスクリームに商号変更",
      "source": "有価証券報告書【沿革】"
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      "event": "ロードサイドタイプの出店を本格開始",
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      "date": "1987/12",
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      "event": "日本証券業協会東京地区協会に株式を店頭登録",
      "source": "有価証券報告書【沿革】"
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      "date": "1996/6",
      "importance": 2,
      "event": "クレープを併売商品として正式に導入",
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      "date": "2018/10",
      "importance": 2,
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      "event": "子会社31 Aikalima LLCがフランチャイジーとして出店",
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