Number | Name | Date | Kind |
---|---|---|---|
3510332 | Weber | May 1970 | |
3589925 | Bell | Jun 1971 | |
3640745 | Darr et al. | Feb 1972 | |
3756840 | Gascon | Sep 1973 | |
3899347 | de Ahna et al. | Aug 1975 | |
5032420 | Shobert et al. | Jul 1991 |
Entry |
---|
WPI/Derwent Abstract 78-23485A/13 of DE2642143. |
WPI/Derwent Abstract 78-34775A/19 of SU 560843. |
WPI/Derwent Abstract 79-003743/31 of RO 66383. |
WPI/Derwent Abstract 79-72995B/40 of JP 79027767. |