Number | Name | Date | Kind |
---|---|---|---|
1883938 | Killeffer | Oct 1932 | |
2348622 | Heilman | May 1944 | |
3539360 | Wood | Nov 1970 | |
4197963 | Nerenberg | Apr 1980 | |
4318475 | Robinson | Mar 1982 | |
4574998 | Vavra | Mar 1986 | |
4978028 | George et al. | Dec 1990 | |
5145108 | Pinckney et al. | Sep 1992 | |
5226555 | Kovaleski | Jul 1993 | |
5452800 | Muir | Sep 1995 |
Entry |
---|
Westvaco, "Fibre Box Handbook", 1989 edition, pp. 62-66. |