| Patents for L. Douville |
Patents 1 -
11
of 11
      |
| Number | Title | Classification(s) |
| 297,640 | Wrench | 81/129, 81/186, 81/356, 81/362, 81/409 |
| 385,414 | Brace for screw-drivers, bits, etc. | 74/127 |
| 443,312 | Pipe Tongs | 269/251, 269/254R, 81/100, 81/13, 81/175, 81/52, 81/57.32 |
| 466,986 | Calipers for Bracelets | 33/800, 33/801 |
| 470,889 | Hammer | 7/146, 81/22, D8/75 |
| 526,658 | Wrench and Bit Stock | 279/44, 279/93, 81/171, 81/186, 81/73 |
| 626,285 | Wrench Attachment for Combination Tools | 7/130, 7/145, 81/166, 81/390, 81/424.5 |
| 902,570 | Stretching Pincers | 294/104, 81/381, 81/420, 81/426, 81/427 |
| 1,054,700 | Compression Wrench | 81/90.2, 81/90.5 |
| 1,081,684 | Compression Wrench | 81/90.5 |
| 1,127,100 | Wrench | 81/111, 81/116, 81/129.5, 81/165 |
