| Patents for R. K. LeBlond Machine Tool Co. |
Patents 61 -
75
of 107
      |
| Number | Date | Patentee | Title | Type |
| 2,243,277 | May 27, 1941 | R.J. Honekamp | Chip control means | lathe tools |
| 2,247,494 | Jul. 01, 1941 | A.L. Hartley | Flame hardening apparatus | flame hardening machines |
| 2,249,240 | Jul. 15, 1941 | W.F. Groene, W.R. Meyer | Power chucking device | crankshaft lathes |
| 2,250,632 | Jul. 29, 1941 | W.L. Groene | Hydraulic chucking mechanism | crankshaft lathes |
| 2,250,633 | Jul. 29, 1941 | W.F. Groene, G.W. Luning | Taper attachment | metal lathe accessories and attachments |
| 2,257,605 | Sep. 30, 1941 | A.L. Hartley | Adjustable flame hardening torch | flame hardening machines |
| 2,285,772 | Jun. 09, 1942 | H.J. Siekmann, W.F. Groene | Method of machining crankshafts | crankshaft lathes |
| 2,290,324 | Jul. 21, 1942 | W.F. Groene, H.J. Siekmann | Method of machining crankshafts | crankshaft lathes |
| 2,299,976 | Oct. 27, 1942 | W.L. Groene | Orbital lathe feed mechanism | crank pin lathes |
| 2,317,099 | Apr. 20, 1943 | W.F. Groene, H.J. Siekmann | Step threading machine | gunsmith |
| 2,317,854 | Apr. 27, 1943 | W.L. Groene | Friction transmission gearing | metal lathe mechanisms |
| 2,318,155 | May 04, 1943 | W.F. Groene, H.F. Stoffregen, Jr. | Gun rifling machine | gunsmith |
| 2,319,451 | May 18, 1943 | W.F. Groene, W.R. Meyer | Gun rifling machine | gunsmith |
| 2,320,333 | May 25, 1943 | H.C. Pierle | Gun boring tool | gunsmith |
| 2,322,127 | Jun. 15, 1943 | W.F. Groene | Vertical circular shaping machine | metal shapers |
