| All Patents in class 81/3.4 |
Patents 1 -
15
of 25
      |
| Number | Date | Patentee | Title | Type |
| 192,760 | Jul. 03, 1877 | H. Hale, T. Hale | Wrench for Holding Fruit-Jars | jar wrenches |
| 213,698 | Mar. 25, 1879 | G.D. Dudley, D. Sherwood | Fruit-Jar Wrench | jar wrenches |
| 218,835 | Aug. 26, 1879 | G.D. Dudley, D. Sherwood | Improvement in Fruit-Jar Wrenches | jar wrenches |
| 274,591 | Mar. 27, 1883 | W. Gregg | Device for Handling Fruit Cans | jar wrenches |
| 276,064 | Apr. 17, 1883 | N. Morse | Jar Holder | jar wrenches |
| 430,287 | Jun. 17, 1890 | H.W. Hawes | Jar Wrench | jar wrenches |
| 463,131 | Nov. 17, 1891 | G.L. Allen | Can Opener | jar wrenches |
| 468,804 | Feb. 16, 1892 | G.P. Hobbs | Jar-Cap Spanner | jar wrenches |
| 516,166 | Mar. 06, 1894 | J.A. Parry | Jar Holder | jar wrenches |
| 562,418 | Jun. 23, 1896 | S.B. Ragatz | Jar Sealer | jar wrenches |
| 593,736 | Nov. 16, 1897 | E.B. Colyer | Jar Wrench | jar wrenches |
| 606,587 | Jun. 28, 1898 | J.J. Schairer | Fruit Jar and Can Opener | jar wrenches |
| 810,984 | Jan. 30, 1906 | W.C. Smith | Tool For Operating Upon Jar Covers | jar wrenches |
| 855,982 | Jun. 04, 1907 | W.A. Rich | Combination Wrench and Can Opener | jar wrenches |
| 1,615,196 | Jan. 18, 1927 | A. Lilja | Jar Opener | jar wrenches |
