EN

Erich Naiwirt

📍 Wien, AT: #1,767 of 3,624 inventorsTop 50%
Overall (All Time): #3,975,829 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4670902 Circuitry for telephone systems 1987-06-02