| Number | Name | Date | Kind |
|---|---|---|---|
| 1664308 | Miller | Mar 1928 | |
| 3021044 | Schubert | Feb 1962 | |
| 3097781 | Masi | Jul 1963 | |
| 3162351 | Rudofski | Dec 1964 | |
| 3291364 | Fischer | Dec 1966 | |
| 3294306 | Areddy | Dec 1966 | |
| 3568912 | deSimas | Mar 1971 | |
| 3650459 | Tucker | Mar 1972 | |
| 3899123 | Stollberg et al. | Aug 1975 | |
| 3995736 | Lawson et al. | Dec 1976 | |
| 4081124 | Hall | Mar 1978 | |
| 4296860 | Hsu et al. | Oct 1981 | |
| 4762226 | Gatton | Aug 1988 | |
| 4874125 | Bates | Oct 1989 | |
| 5111938 | Soprano et al. | May 1992 |
| Number | Date | Country |
|---|---|---|
| 1165276 | Oct 1958 | FRX |
| Entry |
|---|
| "Corrugated and Solid Fibre Handbook," .COPYRGT.1976 Fibre Box Association, Cover page and pp. 1, 33-44, and 48A-D. |
| "Internal Flange Bliss" 2A & Cut Corner 3A, .COPYRGT.1990 Moen Industries. |
| The Wiley Encyclopedia of Packaging Technology, John Wiley & Sons, 1986, pp. 66-69. |