Assignee

GAONDIRECTOR CO LTD

KR·1 granted patent·0 citations·filing 2015–2015

Technology mixA61M1 G10L1 H04M1 H04R1

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0122US10354674B2White noise generating apparatus for stress relaxation and concentration improvement, and white noise generating method using sameGAONDIRECTOR CO LTD·Filed 2015·Granted Jul 16, 2019·0 cites·4 claims

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