Number | Date | Country | Kind |
---|---|---|---|
54-10472 | Feb 1979 | JPX | |
54-117298 | Sep 1979 | JPX | |
55-5790 | Jan 1980 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2916409 | Bucek | Dec 1959 | |
3228809 | Berghaus et al. | Jan 1966 | |
3536602 | Jones et al. | Oct 1970 | |
3616383 | Kausler | Oct 1971 | |
3728051 | Humbert | Apr 1973 | |
3730863 | Keller | May 1973 | |
3925116 | Engel | Dec 1975 | |
4108693 | L'Hermite et al. | Aug 1978 | |
4152177 | Mantel et al. | May 1979 | |
4194930 | Tanaka et al. | Mar 1980 |
Number | Date | Country |
---|---|---|
1223655 | Aug 1966 | DEX |
1621268 | Jun 1971 | DEX |
785878 | Nov 1957 | GBX |
1349290 | Apr 1974 | GBX |
Entry |
---|
Hauch, F. Prakt. Metallbearb. vol. 63, No. 9, pp. 489-494 (1969). |
Edenhofer, Harterei-Technische Mitteilungen, vol. 29, Part 2, pp. 105-112, pub. by Klocknertonen GmbH, Cologne (1974). |