US Patent 7273508 Iron-based sintered alloy material for valve seat
Is a
Date Filed
March 3, 2005
Date of Patent
September 25, 2007
Patent Application Number
11070668
Patent Citations Received
Patent Inventor Names
Arata Kakiuchi
0
Teruo Takahashi
0
Masahiro Takehana
0
Kenichi Sato
0
Tomoki Okita
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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