| Number | Name | Date | Kind |
|---|---|---|---|
| 3294552 | Topalian | Dec 1966 | |
| 3773526 | Bliznak | Nov 1973 | |
| 3792173 | Globe | Feb 1974 | |
| 3900575 | Rapoport | Aug 1975 | |
| 4101680 | Edwards | Jul 1978 |
| Number | Date | Country |
|---|---|---|
| 52-37061 | Sep 1977 | JPX |
| Entry |
|---|
| The Extractor, published by The Extractor Co., p. 112, 1923. |
| Microwave Cook Book, published by Better Homes and Gardens, p. 25, 1976. |