| Number | Name | Date | Kind |
|---|---|---|---|
| D84498 | Steele | Jun 1931 | |
| D88748 | Brain | Dec 1932 | |
| D90757 | Farrar | Sep 1933 | |
| D101445 | Dreyfuss et al. | Oct 1936 | |
| D215291 | Owings | Sep 1969 | |
| D222586 | Hives | Nov 1971 | |
| D224308 | Laver et al. | Jul 1972 | |
| D228500 | Ritzenthaler | Oct 1973 | |
| 2767407 | Weiss | Oct 1956 | |
| 3813706 | Williams | Jun 1974 |
| Entry |
|---|
| American Builder, Dec. 1966, p. 89, "181-Oval Lavatory" item. |