| Patents for R. K. Le Blond Machine Tool Co. |
Patents 136 -
150
of 261
      |
| Number | Date | Patentee | Title | Type |
| 2,250,631 | Jul. 29, 1941 | W.R. Meyer, W.F. Groene | Crankshaft Chuck | metal lathe chucks |
| 2,250,634 | Jul. 29, 1941 | W.L. Groene | Hydraulic Center Drive Chuck | metal lathe chucks |
| 2,250,640 | Jul. 29, 1941 | R.K. Le Blond | Position Indicating Means for Tailstocks | metalworking machine mechanisms |
| 2,251,707 | Aug. 05, 1941 | G.W. Luning, W.F. Groene | Feedbox for Lathes | metalworking machine mechanisms |
| 2,264,458 | Dec. 02, 1941 | H.J. Siekmann | Vertical Crank Pin Lathe | crank pin lathes |
| 2,264,752 | Dec. 02, 1941 | W.F. Groene | Flame Hardening Machine | metalworking machines |
| 2,267,696 | Dec. 23, 1941 | H.J. Siekmann, W.F. Groene | Blacklash Eliminator for Orbital Lathes | metalworking machine mechanisms |
| 2,268,200 | Dec. 30, 1941 | W.F. Groene | Crank Shaft Lathe | crankshaft lathes |
| 2,269,368 | Jan. 06, 1942 | H.J. Siekmann, W.F. Groene | Hydraulic Feeding Mechanism | metalworking machine mechanisms |
| 2,269,908 | Jan. 13, 1942 | H.J. Siekmann, W.F. Groene | Multiple Spindle Indexing Crankshaft Lathe | crankshaft lathes |
| 2,273,258 | Feb. 17, 1942 | W.L. Groene | Boring Tool Holder | drilling and boring tool holders |
| 2,278,988 | Apr. 07, 1942 | W.L. Groene | Boring Tool Holder | lathe tool holders and tool posts |
| 2,280,229 | Apr. 21, 1942 | H.J. Siekmann, W.F. Groene | Multiple Spindle Broaching Lathe | crankshaft lathes |
| 2,280,230 | Apr. 21, 1942 | W.L. Groene | Crankshaft Broaching Lathe | metalworking machine mechanisms |
| 2,282,720 | May 12, 1942 | W.L. Groene | Crankshaft Broaching Lathe | metalworking machine mechanisms |
