| Number | Date | Country | Kind |
|---|---|---|---|
| 98 13042 | Oct 1998 | FR |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3309826 | Zinn | Mar 1967 | A |
| 3481090 | Lizee | Dec 1969 | A |
| 3685234 | Nelsson | Aug 1972 | A |
| 3729883 | Thompson | May 1973 | A |
| 3757480 | Young | Sep 1973 | A |
| 3852926 | Papsco | Dec 1974 | A |
| 4361994 | Carver | Dec 1982 | A |
| 4458462 | Schold | Jul 1984 | A |
| 4700515 | Menchetti | Oct 1987 | A |
| 5136822 | Blum | Aug 1992 | A |
| 5146723 | Greenwood et al. | Sep 1992 | A |
| 5245811 | Knorr | Sep 1993 | A |
| 5287675 | McGee | Feb 1994 | A |
| 5398473 | Chan | Mar 1995 | A |
| 5471805 | Becker | Dec 1995 | A |
| 5644877 | Wood | Jul 1997 | A |
| Number | Date | Country |
|---|---|---|
| 41 16 966 | Nov 1992 | DE |
| G 94 02 979.2 | Jun 1994 | DE |
| 0 111 857 | Jun 1984 | EP |
| 2 160913 | Jan 1986 | GB |
| 2 183 556 | Jun 1987 | GB |
| Entry |
|---|
| Klein Martin, “Einfuhrung in die DIN-Normen”, 1961, Teubner B.G. Verlagsgesellschaft, Stuttgart DE XP002108076 pp. 238-239. |