| All Patents in class 408 |
Patents 2341 -
2355
of 3503
      |
| Number | Date | Patentee | Title | Type |
| 1,575,953 | Mar. 09, 1926 | P. Toorks | Attachment for drilling machines | handheld power tool accessories |
| 1,576,652 | Mar. 16, 1926 | L.S. Hall | Pipe Threading Machine | pipe threading machines |
| 1,580,094 | Apr. 06, 1926 | A. White | Tool-operating machine | mortising machines |
| 1,583,561 | May 04, 1926 | L.L. Schauer | Continuous Strap for Guarding Shafts | radial drill presses |
| 1,583,786 | May 11, 1926 | A.F. Froussard | Cylinder Boring Machine | portable metal drilling machines |
| 1,584,071 | May 11, 1926 | G.A. Arnold | Drill supporting and feeding apparatus | handheld power drills |
| 1,586,559 | Jun. 01, 1926 | L.K. Laursen | Countersink | countersinks |
| 1,588,972 | Jun. 15, 1926 | M. Machacek | Hydraulic feeding mechanism for mortising machines | mortising machines |
| 1,591,585 | Jul. 06, 1926 | W.W. Vosper | Die Head | tap and die holders |
| 1,595,962 | Aug. 10, 1926 | H. Dreses | Radial drilling machine | radial drill presses |
| 1,597,780 | Aug. 31, 1926 | W.R. Fox | Multiple-spindle-drilling machine | |
| 1,600,847 | Sep. 21, 1926 | A.M. Sosa, A.E. Robinson | Drilling Machine | radial drill presses |
| 1,603,280 | Oct. 19, 1926 | L.S. Hall | Die Head for Threading Machines and the Like | tap and die holders |
| 1,603,605 | Oct. 19, 1926 | C. Jobst | Die Head for Thread Cutting Tools | tap and die holders |
| 1,607,614 | Nov. 23, 1926 | J.H. Graham | Tapping machine | tapping machines |
