Number | Date | Country | Kind |
---|---|---|---|
2941/80 | Dec 1980 | HUX |
Entry |
---|
Derwent Abstract 38572A/22, BE 863-116, 01-20-78. |
Derwent Abstract 94831X/51, J5 1125-046, 11-22-74. |
Derwent Abstract 13442W/08, J4 9109-341, 02-26-73. |
Derwent Abstract 26295W/16, FR 2235-927, 06-25-73. |