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Voldemar Riis

📍 Vårgårda, SE: #7 of 50 inventorsTop 15%
Overall (All Time): #1,291,326 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5570720 Mixing valve of single lever type provided with a device for preventing pressure shock at closing movement of the lever 1996-11-05
5413144 Single-lever mixer valve provided with a device for preventing pressure shock at the closing movement of the lever 1995-05-09
4708172 Device at mixing valves 1987-11-24
4304358 Thermostatic mixing valve 1981-12-08