Number | Name | Date | Kind |
---|---|---|---|
D127928 | Wellman | Jun 1941 | |
D197159 | Nelson et al. | Dec 1963 | |
D242099 | Casey | Nov 1976 | |
D262423 | Alpert | Dec 1981 | |
D299794 | Helstab | Feb 1989 | |
D299795 | Helstab | Feb 1989 | |
D328529 | Lenarczyk | Aug 1992 | |
420668 | Wallace | Feb 1890 | |
540503 | Loveland et al. | Jun 1895 | |
3304683 | Ferreira | Feb 1967 |
Entry |
---|
Etagair Collection--DAS System brochure, Etagair GmbH, Jun. 30, 1994, (4 pages). |
Number | Date | Country | |
---|---|---|---|
Parent | 64926 | Jan 1997 | |
Parent | 39980 | Jun 1995 |