Number | Date | Country | Kind |
---|---|---|---|
52807/89[U] | Jan 1989 | ITX |
Number | Name | Date | Kind |
---|---|---|---|
D47324 | Guth | May 1915 | |
D53152 | Irwin | Apr 1919 | |
D87213 | Hoffmann | Jun 1932 | |
1772724 | Lazerson | Aug 1930 |
Entry |
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Architectural Record, 4-1965, p. 167, "Acoustical Clouds", suspended triangular panels. |