| All Patents in class 30/439 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 297,838 | Apr. 29, 1884 | F.E. Parsons | Combined Household Implement | combination tools |
| 529,849 | Nov. 27, 1894 | J. Bien | Can Opener | can and jar openers |
| 707,561 | Aug. 26, 1902 | M.E. Duncan | Can-Opener | combination cork extractors |
| 789,103 | May 02, 1905 | A.M. Parker | Combination-tool | combination cork extractors |
| 900,297 | Oct. 06, 1908 | J.F. McCain | Jar Opener | can and jar openers |
| 970,206 | Sep. 13, 1910 | J.C. Forster | Household Tool | jar wrenches |
| 1,244,972 | Oct. 30, 1917 | G.J. Fitzpatrick | Can Opener | can and jar openers |
| 1,250,413 | Dec. 18, 1917 | W.H. Arnold | Combination can-opener | combination cork extractors |
| 2,512,238 | Jun. 20, 1950 | R.I. Makamura | Frame with slidable tool bit | combination cork extractors |
