Number | Date | Country | Kind |
---|---|---|---|
590381 | Feb 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2293531 | Brooks | Aug 1942 | |
2394192 | Mann | Feb 1946 | |
2902795 | Heigl et al. | Sep 1959 | |
2945323 | Pratt | Jul 1960 | |
2945323 | Pratt | Jul 1960 | |
3415012 | Stubbmann | Dec 1968 | |
3678620 | Voges | Jul 1972 | |
3919163 | Clendinning et al. | Nov 1975 | |
4109442 | Maasbach | Aug 1970 | |
4646470 | Maggio | Mar 1987 |
Entry |
---|
A. M. Leonard Catalog p. 33 Spring/Summer 1990. |