| Number | Name | Date | Kind |
|---|---|---|---|
| D231326 | Miki | Apr 1974 | |
| D268809 | Marontate | May 1983 | |
| D292614 | Nilsson | Nov 1987 | |
| 2893049 | Guerrant | Jul 1959 | |
| 3493032 | Brown, Jr. et al. | Feb 1970 | |
| 3925933 | Reuter | Dec 1975 | |
| 4011696 | Klein | Mar 1977 | |
| 4084289 | Naimo | Apr 1978 | |
| 4344206 | Hermanson | Aug 1982 | |
| 4611848 | Romano | Sep 1986 |
| Entry |
|---|
| Modernfold--Spacesetter Operable Walls, sales brochure, 2231-99020M, Modernfold, Inc. 1990, pp. 1, 16, 28. |