| Patents for Frank O. Hoagland |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 1,323,276 | Dec. 02, 1919 | F.O. Hoagland | Metal Working Machine and Method | metalworking machines |
| 1,323,279 | Dec. 02, 1919 | F.O. Hoagland | Barrel Straightening Mechanism | metal straightening machines |
| 1,323,280 | Dec. 02, 1919 | F.O. Hoagland | Limit Gage | limit gages |
| 1,326,865 | Dec. 30, 1919 | F.O. Hoagland | Milling Cutter | milling machine tools |
| 1,332,398 | Mar. 02, 1920 | F.O. Hoagland | Vise | metalworking machine vises |
| 1,383,629 | Jul. 05, 1921 | F.O. Hoagland | Surface Plate | surface plates |
| 1,383,630 | Jul. 05, 1921 | F.O. Hoagland | Combined Tool Holder and Cutter | lathe tool holders and tool posts |
| 1,423,112 | Jul. 18, 1922 | F.O. Hoagland | Oil Cup | oil or grease fittings |
| 1,434,699 | Nov. 07, 1922 | F.O. Hoagland | Lead Gauge for Threads | thread gages |
| 1,632,600 | Jun. 14, 1927 | F.O. Hoagland | Internal Grinding Machine | internal grinders |
| 1,664,745 | Apr. 03, 1928 | F.O. Hoagland | Fluid Pump | oil pumps |
| 1,669,873 | May 15, 1928 | F.O. Hoagland | Snap Gauge | snap gages |
| 1,695,762 | Dec. 18, 1928 | F.O. Hoagland | Backing-Off Device for Cutters Having Angularly Disposed Teeth | backing off lathes |
| 1,743,604 | Jan. 14, 1930 | F.O. Hoagland | Adapter for Segmental Abrasive Wheels | grinder wheels |
| 1,840,361 | Jan. 12, 1932 | F.O. Hoagland | Spindle Rotating Means for Milling Machines | milling machines |
