Number | Date | Country | Kind |
---|---|---|---|
78135 | Sep 1977 | LUX |
Number | Name | Date | Kind |
---|---|---|---|
3864333 | Sahm et al. | Feb 1975 | |
3971731 | Hartmann et al. | Jul 1976 | |
3993670 | Hartmann et al. | Nov 1976 |
Entry |
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