Number | Name | Date | Kind |
---|---|---|---|
2651447 | Seaborne | Sep 1953 | |
3957179 | Bamburg et al. | May 1976 | |
4392606 | Fremion | Jul 1983 | |
4655366 | Sykes | Apr 1987 | |
4702408 | Powlenko | Oct 1987 | |
4850506 | Heaps, Jr. et al. | Jul 1989 | |
4917289 | Linnemann et al. | Apr 1990 | |
4989751 | Gillett | Feb 1991 | |
5323911 | Johnston et al. | Jun 1994 |
Number | Date | Country |
---|---|---|
1434723 | Jan 1969 | DEX |
Entry |
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Distrubution Packaging, Robert E. Krieger Publishing Company, Friedman and Kipnees, pp. 431-441, 1977. |
The Wiley Encyclopedia of Packaging Technology, John Wiley and Sons, pp. 616-618, 1986. |