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Koji Yamada
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Hirakata-shi, JP
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last 30 patents
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Patent Grant
Ferrous seal sliding parts and producing method thereof
Patent number
8,257,514
Issue date
Sep 4, 2012
Komatsu Ltd.
Takemori Takayama
C21 - METALLURGY OF IRON
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last 30 patents
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Patent Application
Ferrous seal sliding parts and producing method thereof
Publication number
20070289714
Publication date
Dec 20, 2007
Takemori Takayama
C21 - METALLURGY OF IRON
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Patent Application
Ferrous seal sliding parts and producing method thereof
Publication number
20050194071
Publication date
Sep 8, 2005
Takemori Takayama
C21 - METALLURGY OF IRON