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Jongsun KIM
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Bucheon-si, KR
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Patents Grants
last 30 patents
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Patent Grant
Powerless back-flow prevention apparatus
Patent number
10,151,098
Issue date
Dec 11, 2018
KOREA MACHINERY IND. INC.
Jongsun Kim
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
POWERLESS BACK-FLOW PREVENTION APPARATUS
Publication number
20170107711
Publication date
Apr 20, 2017
KOREA MACHINERY IND. INC.
Jongsun KIM
E03 - WATER SUPPLY SEWERAGE