| Patents for Frederick Bentel |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| D5,048 | Jun. 27, 1871 | C.E. McBeth, F. Bentel, W.C. Margedant | Design for boring-machines | drill presses |
| 120,448 | Oct. 31, 1871 | H. Climer, W.C. Margedant, F. Bentel, C.E. McBeth | Improvement in planing-machines | jointers |
| 343,692 | Jun. 15, 1886 | J.T. Gardner, F. Bentel | Horse hay-rake | |
| 343,693 | Jun. 15, 1886 | F. Bentel | Horse hay-rake | |
| 353,397 | Nov. 30, 1886 | F. Bentel | Horse hay-rake | |
| 438,835 | Oct. 21, 1890 | F. Bentel | Autographic register | |
| 481,686 | Aug. 30, 1892 | F. Bentel | Writing-tablet | |
| 626,665 | Jun. 13, 1899 | F. Bentel | Manifolding-book | |
