Number | Date | Country | Kind |
---|---|---|---|
89303821-6 | Apr 1989 | EPX |
Number | Name | Date | Kind |
---|---|---|---|
2123778 | Heilmann | Jul 1938 | |
2703335 | Andrus | Mar 1955 | |
3065286 | Connell | Nov 1962 | |
3121038 | Perotte | Feb 1964 | |
3254320 | Hill et al. | May 1966 | |
3266001 | Landis et al. | Aug 1966 | |
3353260 | Davis et al. | Nov 1967 | |
3463674 | Black et al. | Aug 1969 | |
4080726 | Neimanns et al. | Mar 1978 | |
4300038 | Schwarzkopf | Nov 1981 | |
4494307 | Bourget | Jan 1985 | |
4538350 | Nosal et al. | Sep 1985 | |
4778537 | Thom et al. | Oct 1988 |
Number | Date | Country |
---|---|---|
0084171 | Jul 1983 | EPX |
88291187 | Nov 1988 | EPX |
481430 | Dec 1916 | FRX |
818263 | Sep 1937 | FRX |
904986 | Nov 1945 | FRX |
2503442 | Oct 1982 | FRX |
8900464 | Jan 1989 | WOX |
530574 | Dec 1940 | GBX |
601630 | May 1948 | GBX |
854570 | Jan 1960 | GBX |
1195630 | Jun 1970 | GBX |
477917 | Jan 1978 | GBX |
2100159 | Dec 1982 | GBX |
Entry |
---|
Shultz et al., in "Current Trends in Seamless Tube Mill Design" Sep. 1976, pp. 47-57. |