| Patents for Hench & Dromgold Co. |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 310,821 | Jan. 13, 1885 | W.A. Dromgold, S.N. Hench | Cultivator spring-hoe |
 | 348,208 | Aug. 31, 1886 | W.A. Dromgold, S.N. Hench | Cultivator |
 | 402,079 | Apr. 23, 1889 | W.A. Dromgold, S.N. Hench | Spring-tooth harrow |
 | 419,990 | Jan. 21, 1890 | W.A. Dromgold, S.N. Hench | Spring-tooth harrow |
 | 488,906 | Dec. 27, 1892 | W.A. Dromgold, S.N. Hench, J.N. Richey | Sawmill-dog |
 | 491,447 | Feb. 07, 1893 | W.A. Dromgold, S.N. Hench, E.A. Reese | Mechanism for operating sawmill-carriages |
 | 491,494 | Feb. 07, 1893 | W.A. Dromgold, S.N. Hench, J.N. Richey | Mechanism for operating sawmill-carriages |
 | 540,618 | Jun. 04, 1895 | W.A. Dromgold, S.N. Hench | Harrow |
 | 555,699 | Mar. 03, 1896 | W.A. Dromgold, S.N. Hench | Harrow |
 | 1,226,450 | May 15, 1917 | W.W. Birnstock | Cultivator |
