Number | Date | Country | Kind |
---|---|---|---|
56-70495[U] | May 1981 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3847495 | Peter et al. | Feb 1973 | |
4095908 | Schafer et al. | Mar 1977 |
Entry |
---|
"Definitions of Metallurgical Terms", (.COPYRGT. 1977), Amer. Society for Metals, pp. 3, 32, 38, and 34, cited. |