| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Agriculture | |
| #3 | Packaging and shipping | |
| #4 | Measurement |
| Publication | Filing date | Title |
|---|---|---|
| ES241460A1 | A machine for cleaning grains, for example, cereals (Machine-translation by Google Translate, not legally binding) | |
| ES228019A1 | Improvements introduced in the choice methods of granulose materials (Machine-translation by Google Translate, not legally binding) | |
| DE1018669B | Device for reading out grainy material | |
| DE696150C | Seed separator | |
| DE414934C | Peeling machine with externally adjustable blades |