8 Utility Patents
#5 in Wedel
#31,224 in Germany
#520,941 in the World
Forward Citations = 54
Company Filing History:

Rotring International Gmbh & Co. Kg
Koh-i-noor Inc.
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#5 in Wedel
#31,224 in Germany
#520,941 in the World
Company Filing History:

Get your Inventor Badge Today