Patent Grant
D427900
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| D305000 | Hernandez | Dec 1989 | |
| D371071 | Ford | Jun 1996 | |
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| 4046251 | Bruml | Sep 1977 | |
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| 4449629 | Barrieau | May 1984 | |
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| 5878886 | Marshall | Mar 1999 |
| Number | Date | Country |
|---|---|---|
| 0 559 443 B1 | Aug 1993 | EPX |
| 820419 | Nov 1951 | DEX |
| Entry |
|---|
| Modern Packaging Catalog, p. 300, Jan. 1941. |
| Techform Inc., Nov. 1982. |
