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Research Frontiers | 8-K:重大事件
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Research Frontiers | 10-K:2023财年年报
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Research Frontiers | SC 13G:超过5%持股股东披露文件-John F. Nelson(5.85518%)
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Research Frontiers | 4:持股变动声明-高管 LAPOINTE MICHAEL R
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Research Frontiers | 10-Q:2023财年三季报
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Research Frontiers | 4:持股变动声明-董事 Daigle Darryl
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Research Frontiers | 10-Q:2023财年二季报
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