Number | Date | Country | Kind |
---|---|---|---|
4201986 | Jan 1992 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4297751 | Olin et al. | Nov 1981 | |
4783859 | Rozenblatt | Nov 1988 | |
5007117 | Oldfelt et al. | Apr 1991 | |
5165457 | Olin et al. | Nov 1992 |
Number | Date | Country |
---|---|---|
3026763 | Feb 1981 | DEX |
3932893 | Apr 1990 | DEX |
Entry |
---|
Article: "Schallschutz bei der Sanitaerinstallation", Heft 6, 1991 IKZ-Haustechnik, pp. 54,57,58,60. |