| 2330022 | Method of constructing welded metal water-going vessels | |||
| 1894256 | Boat hull and method of reducing the water friction thereupon | |||
| 1621625 | Air-floated barge | |||
| 1338712 | Metal barge | |||
| 1307135 | N/A | |||
| 0782153 | N/A | |||
| 0608757 | N/A | |||
| 0032403 | N/A |
| GB191026036A | ||||
| FR566174A |