• Title/Summary/Keyword: invention

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히트펌프

  • Korea Invention Promotion Association
    • 발명특허
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    • v.30 no.9 s.351
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    • pp.46-48
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    • 2005
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KIPA 소식

  • Korea Invention Promotion Association
    • 발명특허
    • /
    • v.32 no.2 s.367
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    • pp.20-21
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    • 2007
  • PDF