Number | Name | Date | Kind |
---|---|---|---|
1931079 | Mitchell | Oct 1933 | |
2179669 | Parkin | Nov 1939 | |
2195593 | Kreisler | Apr 1940 | |
2230202 | Machin et al. | Jan 1941 | |
3765528 | Parisot | Oct 1973 | |
4337859 | Murphy et al. | Jul 1982 | |
4579133 | Seidler | Apr 1986 | |
4685558 | Filiz et al. | Jul 1987 |
Number | Date | Country |
---|---|---|
1951217 | Apr 1921 | DE2 |
2156784 | Oct 1985 | GBX |
Entry |
---|
Plastics, Jun. 16, 1966, Chapter 1 "Selecting Plastics" by Glayden V. Fox, pp. 4-7. |