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Patents Grants
last 30 patents
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Patent Grant
Oxygen sensor
Patent number
6,679,982
Issue date
Jan 20, 2004
NGK Spark Plug Co., Ltd.
Hiroshi Matsuzaki
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
Method of manufacturing an oxygen sensor
Publication number
20030205466
Publication date
Nov 6, 2003
NGK SPARK PLUG CO., LTD.
Hiroshi Matsuzaki
G01 - MEASURING TESTING