Number | Date | Country | Kind |
---|---|---|---|
8105818 | Dec 1981 | NLX |
Number | Name | Date | Kind |
---|---|---|---|
2857872 | Usab | Oct 1958 | |
3339907 | Parker | Sep 1967 | |
3418816 | Kumazawa | Dec 1968 | |
3457729 | Wanneroy | Jul 1969 | |
3661359 | Walker | May 1972 | |
3799098 | Taylor | Mar 1974 | |
3863589 | Guienne et al. | Feb 1975 | |
4124986 | Postma | Nov 1978 | |
4158082 | Belousofsky | Jun 1979 | |
4319539 | Fujii | Mar 1982 | |
4355484 | Mandish | Oct 1982 |
Number | Date | Country |
---|---|---|
407418 | Feb 1968 | AUX |
809950 | Apr 1969 | CAX |
7403892 | Sep 1974 | NLX |
1431672 | Apr 1976 | GBX |
Entry |
---|
"Massa-Produktie van Geprefabriceerde Voorgespannen Betonpalen (II)", B. Gerwick, Cement, vol. 21, Jan. 1969, Amsterdam. |