Number | Date | Country | Kind |
---|---|---|---|
1871/87 | Jul 1987 | ATX |
This is a continuation of our copending U.S. patent application Ser. No. 165,511, filed Mar. 8, 1988 now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
3294033 | Blix et al. | Dec 1966 | |
4133266 | Taylor | Jan 1979 | |
4175902 | Herzog et al. | Nov 1979 | |
4190394 | Herzog et al. | Feb 1980 | |
4253398 | Theurer et al. | Mar 1981 | |
4301738 | Theurer | Nov 1981 | |
4418625 | Allmer | Dec 1983 | |
4534295 | Theurer | Aug 1985 | |
4579060 | Nameny et al. | Apr 1986 | |
4611541 | Theurer | Sep 1986 | |
4809614 | Theurer et al. | Mar 1989 | |
4862806 | Theurer et al. | Sep 1989 |
Number | Date | Country |
---|---|---|
2230202 | Aug 1973 | DEX |
91209 | Aug 1978 | JPX |
805075 | Nov 1958 | GBX |
Entry |
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Railway Track & Structures (RT & S) (02/89), and now-continuous-action, selective tie renewal, pp. 28-32. |
"Progressive Railroading", Feb. 78, p. 68; Mar. 84, pp. 93/4; Feb. 86, pp. 45/6. |
"Railway Track Structures", Dec. 68, pp. 14-16; Jun. 78, pp. 28, 29 & 31; Nov. 83, pp. 22-24; Sep. 85, pp. 49, 64, 58, 61, 66, 105 & 106. |
Number | Date | Country | |
---|---|---|---|
Parent | 165511 | Mar 1988 |