Number | Name | Date | Kind |
---|---|---|---|
3100088 | Podmore et al. | Aug 1963 | |
3268177 | McKibben | Aug 1966 | |
3615301 | Pike | Oct 1971 | |
3954483 | Prochazka | May 1976 | |
3966855 | Hollenberg et al. | Jun 1976 | |
4117096 | Hosaka et al. | Sep 1978 | |
4123286 | Coppola et al. | Oct 1978 | |
4275026 | Hazel et al. | Jun 1981 | |
4544376 | Duran | Oct 1985 |
Number | Date | Country |
---|---|---|
2737521 | May 1979 | DEX |
Entry |
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GM 78 1A 4/78 Sweco, Inc. Bulletin. |
Sweco Vibro-Energy Mill Bulletin, By Southwestern Engineering Company, date unknown. |