Number | Name | Date | Kind |
---|---|---|---|
2526567 | Drake et al. | Oct 1950 | |
2673817 | Burns | Mar 1954 | |
3849179 | Morningstar | Nov 1974 | |
3988212 | Watson et al. | Oct 1976 | |
4061545 | Watson et al. | Dec 1977 |
Entry |
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Boundy et al., Styrene, its Polymers, Copolymers and Derivatives, 1952, Reinhold, pp. 21, 150, 151, 204, 205, 697, 714, 758, 760. |
Brown, Metal Finishing, Dec. 1968, pp. 58-60, 66. |