| Patents for Frederick Bentel |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | D5,048 | Jun. 27, 1871 | C.E. McBeth, F. Bentel, W.C. Margedant | Design for boring-machines |
 | 120,448 | Oct. 31, 1871 | H. Climer, W.C. Margedant, F. Bentel, C.E. McBeth | Improvement in planing-machines |
| | 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 |
