Number | Name | Date | Kind |
---|---|---|---|
RE27964 | Berner | Apr 1974 | |
3242238 | Edberg et al. | Mar 1966 | |
3248461 | Willes et al. | Apr 1966 | |
3253064 | Buonaiuto | May 1966 | |
3427372 | Berner | Feb 1969 | |
3856903 | Schaeffer | Dec 1974 |
Entry |
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Bender, Rene J. "Handbook of Foamed Plastics" Libertyville, Ill., Lake Publishing Corp., .COPYRGT.1965, pp. 10-11. |