| Number | Name | Date | Kind |
|---|---|---|---|
| D272162 | McPhail | Jan 1984 | |
| D314402 | Kovens | Feb 1991 | |
| D314794 | Kovens | Feb 1991 | |
| D335595 | Bowen | May 1993 | |
| D344762 | Peterson | Mar 1994 | |
| D348160 | Bustos | Jun 1994 | |
| 2193211 | Taylor | Mar 1940 | |
| 2843985 | Ritzenberg | Jul 1958 | |
| 4560086 | Stol | Dec 1985 | |
| 5370391 | Hilzendeger et al. | Dec 1994 | |
| 5452822 | Haymond | Sep 1995 |
| Entry |
|---|
| A&A Co./Parkway machine corp; Wizard gumball machine brochure; 1994. |
| A&A Co./Parkway machine corp; Zipper gumball machine brochure, Dec. 1995. |
| Machine-O-Matic Ltd.;gumball machine brochure, Mar. 1996. |
| A&A Company Parkway Machine Corporation Catalogue, Parkway Machine Corporation (pp. 10 and 11) since 1941 no date supplied. |