| 1107428 | ||||
| 1194305 | ||||
| 1370415 | Silo-stave | |||
| 1468285 | Concrete-slab building construction | |||
| 1542380 | Storage plant | |||
| 1580695 | Material elevating and storage apparatus | |||
| 1711184 | Silo liner | |||
| 1781699 | Reenforced concrete pipe | |||
| 2050290 | Building structure and method of producing the same | |||
| 2120838 | Stave | |||
| 2212184 | Building unit | |||
| 2746283 | Reinforced concrete bin structure |
| GB647309A | ||||
| AT181419B |