| Patents for Frank O. Hoagland |
Patents 16 -
21
of 21
      |
| Number | Date | Patentee | Title | Type |
| 1,897,666 | Feb. 14, 1933 | F.O. Hoagland | Machine Tool Spindle | metalworking power transmission |
| 1,961,605 | Jun. 05, 1934 | A.E. Drissner, J.E. Lovely, N.I. Lundberg, M.E. Lange, F.O. Hoagland | Standard Spindle Nose | metal lathe chucks |
| 1,980,336 | Nov. 13, 1934 | F.O. Hoagland | Chuck Retaining Means | metal lathe chucks |
| 2,101,177 | Dec. 07, 1937 | F.O. Hoagland | Bench Type Machine Tool | metal lathe chucks |
| 2,167,755 | Aug. 01, 1939 | F.O. Hoagland | Bench Lathe | metal lathes |
| 2,207,804 | Jul. 16, 1940 | F.O. Hoagland | Drill Grinder | drill sharpening machines |
