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 56, D19 57

Patent

active

D03715760

REFERENCES:
patent: D138345 (1944-07-01), Kahn
patent: D143048 (1945-11-01), Waldinger
patent: D198419 (1964-06-01), Hankins
patent: D213531 (1969-03-01), Wakai
patent: D282553 (1986-02-01), LeBlanc
patent: D282753 (1986-02-01), LeBlanc
patent: D312837 (1990-12-01), Oka
patent: D324071 (1992-02-01), Rousseau
patent: D333486 (1993-02-01), Rousseau

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