| All Patents in class 81/439 |
Patents 1 -
15
of 28
      |
| Number | Title | Classification(s) |
| 190,119 | Improvement in Screw-Drivers | 7/169, 81/437, 81/439 |
| 366,439 | Reversible Screw Driver | 279/79, 81/437, 81/439, 81/61 |
| 466,220 | Screw Driver | 7/143, 81/439, 81/456 |
| 504,757 | Screwdriver | 279/102, 7/165, 7/167, 81/438, 81/439 |
| 537,246 | pocket screwdriver | 81/439 |
| 592,176 | Reversible Pocket Tool | 30/162, 7/165, 7/167, 81/439 |
| 686,424 | Screwdriver Kit | 7/165, 7/167, 81/177.4, 81/438, 81/439 |
| 814,020 | Convertible Tool Handle | 112/80.03, 24/20CW, 279/76, 279/93, 403/328, 81/177.2, 81/3.33, 81/436, 81/439 |
| 939,079 | Tool Holder | 279/42, 81/439, 81/490 |
| 1,236,258 | Tool Holder | 112/80.03, 15/184, 81/439 |
| 1,441,950 | Simore Lightning Change | 81/439 |
| 1,689,376 | Multiple Bit Tool | 15/184, 7/167, 76/114, 81/439 |
| 1,783,070 | Screw holding screwdriver | 81/439, 81/456 |
| 2,148,573 | Wrench | 7/138, 81/177.1, 81/437, 81/439 |
| 2,158,728 | Tool Handle | 16/DIG.24, 279/102, 279/24, 81/439, D8/83 |
