Company Filing History:

5 out of 487

Nippon Kokan Kabushiki Kaisha

patents

Years Active: 1985-1987

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4661371 - Method of producing an exhaust valve for diesel engine (1987-04-28),

2. 4556022 - Exhaust valve for diesel engine and production thereof (1985-12-03),

3. 4554898 - Exhaust valve for diesel engine and production thereof (1985-11-26),

4. 4554897 - Exhaust valve for Diesel engine and production thereof (1985-11-26),

5. 4530322 - Exhaust valve for diesel engine and production thereof (1985-07-23),

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Company Filing History:

Years Active: 1985-1987