| Patents for William F. Groene |
Patents 31 -
45
of 212
      |
| Number | Date | Patentee | Title | Type |
| 1,203,751 | Nov. 07, 1916 | W.F. Groene, R.K. Le Blond | Gearing | industrial machine gearing |
| 1,218,784 | Mar. 13, 1917 | W.F. Groene, R.K. Le Blond | Positive Apron Drive for Lathes | engine lathes |
| 1,248,317 | Nov. 27, 1917 | W.F. Groene, H.C. Pierle | Machine-tool | metalworking machines |
| 1,288,563 | Dec. 24, 1918 | W.F. Groene | Clutch | metalworking machine clutches |
| 1,300,163 | Apr. 08, 1919 | W.F. Groene | Means for attaching tools to spindles | milling machines |
| 1,314,744 | Sep. 02, 1919 | W.G. Hoelscher, W.F. Groene | Lathe | engine lathes |
| 1,337,313 | Apr. 20, 1920 | W.F. Groene | Device for connecting tools to spindles | milling machines |
| 1,358,728 | Nov. 16, 1920 | W.F. Groene | Lathe | metalworking machine mechanisms |
| 1,361,792 | Dec. 07, 1920 | W.F. Groene | Tailstock | metal lathes |
| 1,363,506 | Dec. 28, 1920 | W.F. Groene | Lathe | horizontal boring mills |
| 1,363,969 | Dec. 28, 1920 | W.G. Hoelscher, W.F. Groene | Base and Chip Pan for Machine Tools | metal lathe accessories and attachments |
| 1,393,115 | Oct. 11, 1921 | W.F. Groene | Turning and Facing Lathe | metal lathes |
| 1,401,534 | Dec. 27, 1921 | W.F. Groene | Taper Attachment for Lathes | metal lathe accessories and attachments |
| 1,405,206 | Jan. 31, 1922 | W.F. Groene | Work Support | metal lathe accessories and attachments |
| 1,416,016 | May 16, 1922 | W.F. Groene | Countershaft brake | metalworking machine mechanisms |
