Number | Name | Date | Kind |
---|---|---|---|
2649101 | Suits | Aug 1953 | A |
2743510 | Mauney et al. | May 1956 | A |
3240217 | Bird et al. | Mar 1966 | A |
3375321 | Laing | Mar 1968 | A |
3660951 | Cadwell et al. | May 1972 | A |
3909992 | Stachiw | Oct 1975 | A |
4004380 | Kwake | Jan 1977 | A |
5097548 | Heck et al. | Mar 1992 | A |
6282842 | Simens | Sep 2001 | B1 |
6282843 | Shibaike et al. | Sep 2001 | B1 |
Number | Date | Country |
---|---|---|
0359691 | Mar 1990 | EP |
2707687 | Jan 1995 | FR |
2008646 | Jun 1979 | GB |
Entry |
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Kawaguchi, Mamoru, Architecture and Science, The Opposite Path—Otto Frei at the 65th Birthday, “Pneumatic Constructions”, Arcus, vol. 10, No. 245, pp. 1-22. |