| Number | Date | Country | Kind |
|---|---|---|---|
| 116403 | Dec 1995 | ILX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 393169 | McGowan | Nov 1888 | |
| 1297177 | Johnson | Mar 1919 | |
| 1737163 | Keppinger | Nov 1929 | |
| 2120481 | Bentz | Jun 1938 | |
| 2122832 | Bentz | Jul 1938 | |
| 2607926 | Puy | Aug 1952 | |
| 2629882 | Blumenshine | Mar 1953 | |
| 2649139 | Singleton | Aug 1953 | |
| 2698440 | Lyons | Jan 1955 | |
| 2752610 | Mabrey | Jul 1956 | |
| 2992439 | Van Tassel | Jul 1961 | |
| 3383714 | Minasian | May 1968 | |
| 4205404 | Levins | Jun 1980 | |
| 4466140 | Sakamoto | Aug 1984 | |
| 4534072 | Lipski | Aug 1985 | |
| 4635303 | Shih | Jan 1987 | |
| 4645261 | Bourne et al. | Feb 1987 | |
| 4777672 | Gebhard et al. | Oct 1988 |
| Number | Date | Country |
|---|---|---|
| 812141 | Apr 1937 | FRX |
| 595534 | Mar 1934 | DEX |
| 2010637 | Feb 1972 | DEX |
| 69189 | Jul 1983 | ILX |
| 009318 | May 1900 | GBX |
| 501354 | May 1938 | GBX |
| 756852 | Sep 1956 | GBX |
| Entry |
|---|
| Brochure: Primo Feedom Trainer Deluxe, Primo 149 Shaw Avenue, Irvington, N.J. 07111, U.S.A. no date. |
| Brochure: Nursery Needs, Sanitoy Inc., Nursery Lane, P.O. Box 2167, Fitchburg, MA. 01420, U.S.A. no date. |