| All Patents in class 81/20 |
Patents 16 -
30
of 75
      |
| Number | Date | Patentee | Title | Type |
| 145,992 | Dec. 30, 1873 | J. Dillon | Compound-Tools | combination tools |
| 147,113 | Feb. 03, 1874 | N.K. Ellsworth | Tools | combination tools |
| 147,427 | Feb. 10, 1874 | D.W. Parker | Claw-Hammers | hammers |
| RE6,623 | Aug. 31, 1875 | D.W. Parker | Improvement in Claw-Hammers | hammers |
| 177,386 | May 16, 1876 | E.A. Ely | Hammer | hammers |
| 177,843 | May 23, 1876 | J. Hunt | Combined Household Tool | combination tools |
| 199,568 | Jan. 22, 1878 | P.F. Peters | Improvement in Lasting Hammers | hammers |
| 222,825 | Dec. 23, 1879 | H.S. Isham | Improvements in Hammers, Mallets, etc. | hammers |
| 298,650 | May 13, 1884 | H.T. Heller, A.L. Flack, G.S. Yingling | Tack-Hammer | tack hammers |
| 299,488 | May 27, 1884 | J.A. Morrell | Combination Tool | combination tools |
| D16,729 | Jun. 08, 1886 | J.E. Selsor | Hammer | hammers |
| 345,630 | Jul. 13, 1886 | J.N. Girard | Combined Tool | combination tools |
| 351,039 | Oct. 19, 1886 | C.F. Brent, A. Lang | Combined hammer and plane | combination tools |
| 352,070 | Nov. 02, 1886 | A.R. Robertson | Magnetic Tack-Hammer | tack hammers |
| 356,925 | Feb. 01, 1887 | T.E. Chamberlin | Combination Hammer, Pry Bar, and Screwdriver | combination tools |
