WK

Wolfgang Kupferschmidt

PT Pelikan Technologies: 1 patents #31 of 59Top 55%
Overall (All Time): #4,040,050 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4468147 Writing wick for felt markers or pens Christoph Manusch 1984-08-28