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<dcvalue element="contributor" qualifier="author">이영아</dcvalue>
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<dcvalue element="date" qualifier="accessioned">2024-01-12T06:42:01Z</dcvalue>
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<dcvalue element="title" qualifier="none">계단식&#x20;내부&#x20;채움을&#x20;포함한&#x20;흡음구조체</dcvalue>
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<dcvalue element="date" qualifier="registration">2021-01-04</dcvalue>
<dcvalue element="date" qualifier="application">2018-12-12</dcvalue>
<dcvalue element="identifier" qualifier="patentRegistrationNumber">10-2200473</dcvalue>
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<dcvalue element="contributor" qualifier="assignee">한국과학기술연구원</dcvalue>
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