Number | Name | Date | Kind |
---|---|---|---|
4001198 | Thomas | Jan 1977 | |
4202909 | Pederson, Jr. | May 1980 | |
4543261 | Harmon et al. | Sep 1985 | |
4547386 | Chambers et al. | Oct 1985 | |
4617861 | Armstrong | Oct 1986 | |
4771001 | Bailey et al. | Sep 1988 | |
4855056 | Harju et al. | Aug 1989 | |
4964995 | Chum et al. | Oct 1990 | |
4968521 | Melnychyn | Nov 1990 | |
4971701 | Harju et al. | Nov 1990 | |
5118516 | Shimatani et al. | Jun 1992 | |
5270462 | Shimatani et al. | Dec 1993 |
Entry |
---|
Patent Abstracts of Japan, JP-A-03 143 351, Jun. 18, 1991. |
Patent Abstracts of Japan, JP-A-59 184 197, Oct. 19, 1984. |
Patent Abstracts of Japan, JP-02 237 992, Sep. 20, 1990. |
Patent Abstracts of Japan, JP-A-01 168 693, Jul. 4, 1989. |