| Patents for James Hartness |
Patents 31 -
45
of 94
      |
| Number | Date | Patentee | Title | Type |
| 700,645 | May 20, 1902 | J. Hartness | Fluid Regulating Device | hydraulic apparatus |
| 700,646 | May 20, 1902 | J. Hartness | Fluid Operating Device | turret lathes |
| 700,647 | May 20, 1902 | J. Hartness | Power Transmission Mechanism | metalworking machine clutches |
| 703,410 | Jul. 01, 1902 | J. Hartness | Fluid Regulating Device | hydraulic apparatus |
| 703,411 | Jul. 01, 1902 | J. Hartness | Back Gearing for Lathes | metalworking speed changing mechanisms |
| 735,254 | Aug. 04, 1903 | J. Hartness | Metal Working Machine | metal lathe accessories and attachments |
| 739,866 | Sep. 29, 1903 | J. Hartness | Turret Lathe | turret lathes |
| 763,886 | Jun. 28, 1904 | J. Hartness | Temple Controlled Turner for Lathes. | form producing lathes |
| 769,219 | Sep. 06, 1904 | J. Hartness | Turning Tool for Lathes | lathe tools |
| 771,242 | Oct. 04, 1904 | J. Hartness | Turret Lathe | turret lathes |
| 771,243 | Oct. 04, 1904 | J. Hartness | Lathe | metal lathes |
| 773,640 | Nov. 01, 1904 | J. Hartness | Turning-Tool | lathe tools |
| 792,591 | Jun. 20, 1905 | J. Hartness | Metalworking Machine | metalworking power transmission |
| 800,440 | Sep. 26, 1905 | J. Hartness | Bed for Turret Lathes | turret lathes |
| 800,570 | Sep. 26, 1905 | J. Hartness | Compensating Bearing | metalworking machine bearings |
