Number | Date | Country | Kind |
---|---|---|---|
3215314 | Apr 1982 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2269601 | Perrin | Jan 1942 | |
2784123 | Rappaport | Mar 1957 | |
3408236 | Hartesvelt | Oct 1968 | |
4263060 | Gaucher | Mar 1981 |
Number | Date | Country |
---|---|---|
2001677 | Jul 1977 | GBX |
Entry |
---|
McGannon, The Making & Shaping of Steel, p. 31, 1964. |