Number | Date | Country | Kind |
---|---|---|---|
56-107485 | Jul 1981 | JPX | |
56-154068 | Sep 1981 | JPX | |
56-192627 | Nov 1981 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2060850 | Calcott et al. | Nov 1936 | |
2684961 | Barham | Jul 1954 | |
4110530 | Sciavolino | Aug 1978 | |
4304856 | Baltz et al. | Dec 1981 | |
4373095 | Ganguly et al. | Feb 1983 | |
4401660 | Kirst | Aug 1983 |
Number | Date | Country |
---|---|---|
2045246 | Oct 1980 | GBX |
Entry |
---|
Houber Weyl, 1957, pp. 985-988. |