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Sae Il Oh
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Changwon, KR
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last 30 patents
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Patent Grant
Engine tappet of high abrasion resistance and method for manufactur...
Patent number
5,993,978
Issue date
Nov 30, 1999
Volvo Construction Equipment Korea Co., Ltd.
Kang Hyung Kim
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS