Number | Name | Date | Kind |
---|---|---|---|
3939654 | Creps | Feb 1976 | |
3962866 | Neidhard et al. | Jun 1976 | |
3969932 | Rieger et al. | Jul 1976 | |
4007589 | Neidhard et al. | Feb 1977 | |
4027477 | Storey | Jun 1977 | |
4121548 | Hattori et al. | Oct 1978 | |
4251990 | Norimatsu et al. | Feb 1981 | |
4622809 | Abthoff et al. | Nov 1986 | |
4831838 | Nagai et al. | May 1989 | |
4840027 | Okumura | Jun 1989 | |
5077970 | Hamburg | Jan 1992 | |
5165230 | Kayanuma et al. | Nov 1992 |
Number | Date | Country |
---|---|---|
6445913 | Aug 1987 | JPX |
2178857 | Jul 1985 | GBX |
Entry |
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Clemens et al.--SAE Technical Paper 900062, Detection of Catalyst Performance Loss Using On-Board Diagnostics, Feb. 26--Mar. 2, 1990. |