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Saburo Ogawa
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Osaka-Shi, JP
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last 30 patents
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Patent Grant
Steel workpiece oil quenching method
Patent number
6,723,188
Issue date
Apr 20, 2004
Chugai Ro Co., Ltd.
Yoshikazu Shimosato
C21 - METALLURGY OF IRON
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last 30 patents
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Patent Application
Steel workpiece oil quenching method
Publication number
20020166610
Publication date
Nov 14, 2002
Yoshikazu Shimosato
C21 - METALLURGY OF IRON