Number | Date | Country | Kind |
---|---|---|---|
99 01504 | Feb 1999 | FR | |
99 04185 | Apr 1999 | FR |
Number | Name | Date | Kind |
---|---|---|---|
3880859 | Scheuermann et al. | Apr 1975 | A |
4139532 | Scheuermann et al. | Feb 1979 | A |
6060601 | Langhals et al. | May 2000 | A |
Number | Date | Country |
---|---|---|
21 47 706 | Mar 1973 | DE |
1 557 945 | Feb 1969 | FR |
Entry |
---|
English language Derwent Abstract of DE 21 47 706. |