| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Compressed gas holders | |
| #2 | Venting or aerating devices | |
| #3 | Pipes | |
| #4 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rackow Willy | 3 |
| #2 | Stein Otto | 1 |
| #3 | Hennecke E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1600937A1 | Valve unit, especially for gaseous media | |
| DK112696B | Valve for compressed gas cylinders. | |
| DE1256980B | Gas cylinder valve | |
| DE1159368B | Bottle changing device for liquid gas systems | |
| DE1082288B | Extraction device for liquid gas systems | |
| DE1019881B | Switching device for pressure reducer | |
| DE832369C | Spring-loaded control valve for high pressure gas bottles |