| All Patents in class D10/69 |
Patents 1 -
15
of 31
      |
| Number | Date | Patentee | Title | Type |
| 17,870 | Jul. 28, 1857 | C. Cole | Adjustment Applied to Pendulum Levels | level adjustments |
| D3,195 | Sep. 22, 1868 | L.L. Davis | Design for a Spirit Level | metallic levels |
| D10,014 | May 29, 1877 | L.L. Davis | Design for Spirit Levels | metallic levels |
| D10,015 | May 29, 1877 | L.L. Davis | Design for Spirit Levels | metallic levels |
| D10,016 | May 29, 1877 | L.L. Davis | Design for Spirit Levels | metallic levels |
| D10,017 | May 29, 1877 | L.L. Davis | Design for Spirit Levels | machinist levels |
| D24,011 | Feb. 05, 1895 | F.C. Rebell | Design for a Square | try squares |
| D24,503 | Jul. 23, 1895 | L.S. Starrett | Try Square | squares |
| D25,130 | Feb. 04, 1896 | J.A. Traut | Design for a Level Frame or Block | wooden levels |
| D25,392 | Apr. 14, 1896 | L.S. Starrett | Design for a Plumb and Level Frame | metallic levels |
| 582,517 | May 11, 1897 | S.H. Bellows | Shaft Level | machinist levels |
| D29,875 | Dec. 27, 1898 | B.E. Sawyer | Design for a Combination Square | try squares |
| D32,390 | Mar. 27, 1900 | G.F. Conner | Design for a Level | metallic levels |
| D33,034 | Jul. 31, 1900 | E.C. Akers | Design for a Ship's Level Case | levels |
| D33,545 | Nov. 13, 1900 | G.L. Buff | Design for a Vernier Plate for Surveying Instruments | layout tools |
