| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machine tools | |
| #3 | Packaging and shipping | |
| #4 | Mechanical elements | |
| #5 | Control | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Burners | |
| #2 | Thread cutting | |
| #3 | Making needles | |
| #4 | Lifting and pushing | |
| #5 | Accessories for machine tools | |
| #6 | Fluid fuel combustion | |
| #7 | Systems controlling non-electric variables | |
| #8 | Chairs and beds | |
| #9 | Lubricating | |
| #10 | Gearing |
| Publication | Filing date | Title |
|---|---|---|
| ES414135A1 | Convertible chair | |
| DE479274C | Machine for processing screw heads | |
| DE491484C | Automatic thread cutting machine for wood screws | |
| DE439097C | Feed device on thread cutting machines with gear-like, rotating cutting tool |