| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Measurement | |
| #3 | Thermal processes | |
| #4 | Mechanical elements | |
| #5 | Transport | |
| #6 | Computer technology | |
| #7 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Transferring liquids | |
| #2 | Measuring volume | |
| #3 | Installations for use in connection with aircrafts | |
| #4 | Venting or aerating devices | |
| #5 | Furnaces | |
| #6 | Counting mechanisms | |
| #7 | Separation | |
| #8 | Details of furnaces |
| Publication | Filing date | Title |
|---|---|---|
| DE485856C | Automatic control for liquid measuring devices | |
| DE479042C | Liquid meter with two measuring vessels |