Number | Date | Country | Kind |
---|---|---|---|
8646/77 | Dec 1977 | ATX |
Number | Name | Date | Kind |
---|---|---|---|
2251410 | Koehring et al. | Aug 1941 | |
2332733 | Lignian | Oct 1943 | |
3891473 | Latva | Jun 1975 | |
4028100 | Latva | Jun 1977 |
Entry |
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Powder Metallurgy Equipment Manual (1977), pp. 138, 139. Metal Powder Industries Federation p. 64. |