RZ

Reinhard Zur

KR Koh-I-Noor Rapidograph: 2 patents #10 of 38Top 30%
Overall (All Time): #2,330,879 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4833490 Writing element with exchange mechanism 1989-05-23
4769914 Lettering device 1988-09-13