Fountain pen

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Marking instrument

Patent

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Details

D19 56, D1906

Patent

active

D02648547

REFERENCES:
patent: D223307 (1972-04-01), Nickolds
patent: D249696 (1978-09-01), Henkels
patent: D251123 (1979-02-01), Hurntrich
patent: D259792 (1981-07-01), Itoh et al.
patent: D260406 (1981-08-01), Itoh

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