Kob-I-Noor Rapidograph, Inc.

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Bloomsbury, NJ, US

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Information Patent Grant
Tubular writing pen tip with adjustment means
- Patent number 4,662,769
- Issue date May 5, 1987
- Kob-I-Noor Rapidograph, Inc.
- Djing-San Goh
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

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