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| All Patents in class 81/3.56 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,878 | Apr. 13, 1852 | G.C. Taft | Double-Lever Box Opener | ||
| 118,453 | Aug. 29, 1871 | G.J. Hill | Improvement in Bottle and Box Openers | ||
| 561,862 | Jun. 09, 1896 | F.W. Brown | Can Opener | jar wrenches | |
| 982,893 | Jan. 31, 1911 | A.W. Stephens | Bottle Cap Remover | combination cork extractors | |
| 4,018,110 | Apr. 19, 1977 | S.C. Spriggs | Stopper Remover | champagne and soda tools | |