Musical pen with small central button

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Plural or combined

Patent

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Details

D19 43, D19 51, D19 56, D19 57, 1906

Patent

active

D04100298

REFERENCES:
patent: D249888 (1978-10-01), Barnes
patent: D265741 (1982-08-01), Funahashi
patent: D275577 (1984-09-01), Hechter
patent: D277393 (1985-01-01), Oyabu
patent: D284583 (1986-07-01), Zierhut
patent: D286790 (1986-11-01), Bove
patent: D364641 (1995-11-01), Osterhaut
patent: 1490231 (1924-04-01), Poole
patent: 3133526 (1964-05-01), Sears
patent: 4371278 (1983-02-01), Joo
patent: 4763355 (1988-08-01), Cox
patent: 5313557 (1994-05-01), Osterhaut

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