| All Patents of Type: stone crushers |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 324,937 | Aug. 25, 1885 | F.A. Huntington | Rock crusher or breaker | ore processing apparatus |
| 412,558 | Oct. 08, 1889 | A.P. Stephens | Surface for grinding and crushing | stone crushers |
| 1,950,501 | Mar. 13, 1934 | J.J. MacKay | Rock crushing plant | ore processing apparatus |
| 2,117,300 | May 17, 1938 | J. Corser | Rock crushing machine | ore processing apparatus |
| 2,174,116 | Sep. 26, 1939 | G.A. Bilocq | Stone crusher | stone crushers |
| 2,179,747 | Nov. 14, 1939 | P.C. Malmsten | Means for conveying aggregates in portable rock crusher machines | stone crushers |
| 2,232,431 | Feb. 18, 1941 | G.A. Bilocq | Rotating elevator | stone crushers |
