Number | Name | Date | Kind |
---|---|---|---|
3957919 | von Bodungen | May 1976 | |
4397982 | Boutni | Aug 1983 | |
4430468 | Schumacher | Feb 1984 | |
4446267 | Lundberg | May 1984 | |
4677142 | Solc | Jun 1987 | |
4696967 | Shedd | Sep 1987 | |
4822653 | Kauffman | Apr 1989 |
Entry |
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A. Spaak, "Use of Secondary Recycled Plastics", a paper presented at the Plastics Institute of America, meeting on Oct. 6-7, 1988 at the Sheraton Hotel, Newark, N.J. |