Number | Name | Date | Kind |
---|---|---|---|
3059054 | Reiter | Oct 1962 | |
3213199 | Snow | Oct 1965 | |
3879578 | Wildi | Apr 1975 | |
3980827 | Sepmeyer et al. | Sep 1976 | |
3985200 | Sepmeyer | Oct 1976 | |
3985957 | Torn | Oct 1979 | |
4010324 | Jarvis et al. | Mar 1977 | |
4024535 | Goldstein | May 1977 | |
4052564 | Propst et al. | Oct 1977 | |
4054751 | Calder et al. | Oct 1977 | |
4059726 | Watters et al. | Oct 1977 | |
4098370 | McGregor et al. | Jul 1978 | |
4185167 | Cunningham et al. | Jan 1980 | |
4280019 | Propst et al. | Jul 1981 | |
4319088 | Orfield | Mar 1982 |
Entry |
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"Sound Solutions for Office Privacy", Miller 1976. |