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Dukhyun Yun
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Seoul, KR
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last 30 patents
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Patent Grant
Air quality monitoring device
Patent number
D942281
Issue date
Feb 1, 2022
Bitfinder, Inc.
Bosung Kim
D10 - Measuring, testing, or signalling instruments
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Patent Grant
Air quality monitoring device
Patent number
D768012
Issue date
Oct 4, 2016
Bitfinder, Inc.
Bosung Kim
D10 - Measuring, testing, or signalling instruments