| Number | Name | Date | Kind |
|---|---|---|---|
| 1297190 | Lawson | Mar 1919 | |
| 3680177 | Ginsberg | Aug 1972 | |
| 3825150 | Taylor | Jul 1974 | |
| 3888406 | Nippes | Jun 1975 | |
| 4113125 | Schiller | Sep 1978 | |
| 4294379 | Bard | Oct 1981 | |
| 4446966 | Moloney | May 1984 | |
| 4576310 | Isgar et al. | Mar 1986 | |
| 4577773 | Bitel | Mar 1986 | |
| 4735340 | Preston | Apr 1988 | |
| 4826013 | Heikkinen | May 1989 | |
| 4828133 | Hougendobler | May 1989 | |
| 4834262 | Reed | May 1989 | |
| 4867328 | McCarthy | Sep 1989 | |
| 4874111 | Heller | Oct 1989 | |
| 4893719 | Lombardi et al. | Jan 1990 | |
| 4893722 | Jones | Jan 1990 | |
| 4905853 | Strawder | Mar 1990 | |
| 4964523 | Bieltvedt et al. | Oct 1990 | |
| 4964528 | Wagoner | Oct 1990 | |
| 4974746 | Dickinson | Dec 1990 | |
| 4991737 | Edelman | Feb 1991 | |
| 5050768 | Alden | Sep 1991 |
| Number | Date | Country |
|---|---|---|
| 3642734 | Jun 1988 | DEX |
| Entry |
|---|
| P. 15 of Hammacher Schlemmer Catalog entitled "The Environmentalist's Garbage--Separating Trash Stand." |