| All Patents in class 30/347 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
| | 69,473 | Oct. 01, 1867 | C.C. Parsons | Pipe and Bolt Cutter |
 | 166,954 | Aug. 24, 1875 | F.R. Woodward | Improvement in rotary paper-cutters |
| | 445,700 | Feb. 03, 1891 | J. Pasteyer, J. Lachaume | Shears |
 | 1,833,980 | Dec. 01, 1931 | W.O. Thewes | Pipe cutter |
| | 3,877,146 | Apr. 15, 1975 | C.B. Pittinger | Rotating blade holder |
| | 4,490,910 | Jan. 01, 1985 | R.J. Landy, C.A. Mattson | Cutting head for string trimmer |
| | 4,603,478 | Aug. 05, 1986 | K.K. Anderson | Trimmer with adjustable handle |
 | 4,926,557 | May 22, 1990 | E.J. Haupt | Semi-automatic string trimmer head |
 | 4,942,664 | Jul. 24, 1990 | L. Zatulovsky | String trimmer with automatic feed |
