Number | Name | Date | Kind |
---|---|---|---|
861852 | Hill | Jul 1903 | |
906765 | Anderson | Dec 1908 | |
1980634 | Philips | Nov 1934 | |
3098641 | Baldwin | Jul 1963 | |
3349848 | Burgh | Oct 1967 | |
3385068 | Armentrout | May 1968 | |
3586379 | Lambly | Jun 1971 | |
3692364 | Henriksson et al. | Sep 1972 | |
3790214 | Kilroy | Feb 1974 |
Number | Date | Country |
---|---|---|
536,728 | Oct 1931 | DD |
348,373 | Feb 1922 | DD |
Entry |
---|
"Portable Crusher for Open Pit and Quarry Operations," B. J. Kochanowsky, Mining Engineering, Dec. 1960, pp. 299-318. |