Ball-point pen

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

Patent

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Details

D19 49, D19 51, D19 56, D19 57

Patent

active

D03633080

REFERENCES:
patent: D151233 (1948-10-01), Goessling
patent: D162805 (1951-04-01), Ferber
patent: D169307 (1953-04-01), Ferber
patent: D216844 (1970-03-01), Shimada
patent: D300640 (1989-04-01), Coletta et al.
patent: D329873 (1992-09-01), Tu
patent: D338038 (1993-08-01), Oka et al.
patent: D341623 (1993-11-01), Chuang
patent: D351417 (1994-10-01), Oka

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