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 51, D1900

Patent

active

D02694450

REFERENCES:
patent: D92534 (1934-06-01), Hale
patent: D93736 (1934-10-01), Riddel
patent: D100845 (1936-08-01), Bloser
patent: D169307 (1953-04-01), Ferber
patent: D174250 (1955-03-01), Daniels

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