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 41, D21161

Patent

active

D03130410

REFERENCES:
patent: D155996 (1949-11-01), Gowland
patent: D160471 (1956-10-01), Cambell
patent: D169310 (1953-04-01), Fullerton
patent: D172272 (1954-05-01), Ewing
patent: D177084 (1956-03-01), Cluzin
patent: D242762 (1976-12-01), Wolfe
patent: D298263 (1988-10-01), Perry et al.
patent: 2182642 (1939-12-01), Rexford

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