| Patents for Electro-Magnetic Tool Co. |
Patents 1 -
10
of 18
      |
| Picture | Number | Date | Patentee | Title |
 | 894,782 | Jul. 28, 1908 | G.H. Rowe | Rock hammer-drill |
 | CA-120,598 | Sep. 21, 1909 | G.H. Rowe | Rock hammer-drill |
 | 938,708 | Nov. 02, 1909 | G.H. Rowe | Stamp mill |
 | 938,709 | Nov. 02, 1909 | G.H. Rowe | Electromechanical device |
 | 973,216 | Oct. 18, 1910 | G.H. Rowe | Electromechanical device |
 | 1,024,025 | Apr. 23, 1912 | G.H. Rowe | Percussion device |
 | 1,024,026 | Apr. 23, 1912 | G.H. Rowe | Electromechanical device |
 | 1,024,027 | Apr. 23, 1912 | G.H. Rowe | Electromechanical device |
 | 1,062,799 | May 27, 1913 | G.H. Rowe | Rock drill |
 | 1,082,880 | Dec. 30, 1913 | J.S. Knowlson | Mechanical hammer |
