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Joo Ha Ryu
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Kyongsangbuk-do, KR
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Patents Grants
last 30 patents
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Patent Grant
Tungsten heavy alloy for penetrating splinter shell and forming met...
Patent number
6,827,756
Issue date
Dec 7, 2004
Poongsan Corporation
Kyung Jin Park
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
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Patent Application
Tungsten heavy alloy for penetrating splinter shell and forming met...
Publication number
20040033155
Publication date
Feb 19, 2004
Kyung Jin Park
F42 - AMMUNITION BLASTING