| All Patents in class 173/117 | 
| Patents 1 - 
					8
					of 8 
       | 
| Number | Date | Patentee | Title | Type | 
| 938,709 | Nov. 02, 1909 | G.H. Rowe | Electromechanical device | impact riveters | 
| 973,216 | Oct. 18, 1910 | G.H. Rowe | Electromechanical device | impact riveters | 
| 1,017,916 | Feb. 20, 1912 | G.H. Rowe | Power Hammer | power hammers | 
| 1,024,025 | Apr. 23, 1912 | G.H. Rowe | Percussion device | impact chisels and drills | 
| 1,024,026 | Apr. 23, 1912 | G.H. Rowe | Electromechanical device | impact chisels and drills | 
| 1,062,799 | May 27, 1913 | G.H. Rowe | Rock drill | miner | 
| 1,298,966 | Apr. 01, 1919 | J.S. Knowlson | Electrically-operated tool | impact riveters | 
| 3,054,464 | Sep. 18, 1962 | E.J. Ondeck | Electric Hammer | handheld power tools |