Number | Name | Date | Kind |
---|---|---|---|
3224873 | Swanson | Dec 1965 | |
3821351 | Lucid | Jun 1974 | |
3971843 | Helgorsky et al. | Jul 1976 | |
4362560 | Abrjutin et al. | Dec 1982 |
Number | Date | Country |
---|---|---|
245736 | Dec 1985 | JPX |
Entry |
---|
Xiang et al., Acta Metallurgica Sinica, 18 (2), 221 (1982). |