| All Patents in class 144/9 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 7,355 | May 14, 1850 | O.P. Allen | Machine for slitting clothes-pins | clothespin machines |
| 10,553 | Feb. 21, 1854 | J.B. Smith | Machine for slitting clothes-pins | clothespin machines |
| 12,775 | May 01, 1855 | M. Blake, H. Blake | Clothes-pin machine | clothespin machines |
| 14,110 | Jan. 15, 1856 | E. Parker | Machine for making clothes-pins | clothespin machines |
| 16,923 | Mar. 31, 1857 | J. Humphrey | Machine for cutting slots in clothes-pins | clothespin machines |
| 22,430 | Dec. 28, 1858 | J. Humphrey | Tool for slotting clothes-pins | clothespin machines |
| 25,344 | Sep. 06, 1859 | A.C. Mason | Machine for wiring the joints of clothes-pins | clothespin machines |
| AI259 | Dec. 13, 1859 | E. Parker | Clothes-pin machine | clothespin machines |
| 94,838 | Sep. 14, 1869 | A.J. Ockington | Improvement in machinery for making clothes-pins | clothespin machines |
| 124,137 | Feb. 27, 1872 | S. Inman | Improvement in clothes-pin machines | clothespin machines |
| 129,118 | Jul. 16, 1872 | R. Emerson | Improvement in machinery for making clothes-pins | clothespin machines |
| 145,587 | Dec. 16, 1873 | B.B. Ockington, A.J. Ockington | Improvement in machines for making clothes-pins | wood lathes |
| 147,277 | Feb. 10, 1874 | H. Locke, E.W. Locke | Improvement in clothes-pin machine | wood lathes |
| 170,394 | Nov. 23, 1875 | M. Pratt | Improvement in machines for slotting and drilling clothes-clamps | clothespin machines |
| 178,546 | Jun. 13, 1876 | J.W. Millet | Improvement in machines for making clothes-pins | pattern lathes |
