Writing instrument

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

Patent

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Details

D19 36, D19 51, D10 58, 401195

Patent

active

D03604322

REFERENCES:
patent: D24538 (1895-08-01), Bayer
patent: D114899 (1939-05-01), Lipic, Jr.
patent: D153637 (1949-05-01), Reiss
patent: D175539 (1955-09-01), Dunn
patent: 1646914 (1927-10-01), Kashiwagi
patent: 3261548 (1966-07-01), Riehle
patent: 4403418 (1983-09-01), Vagias

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