Non-sharpening pencil with cap

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

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D19 43, D19 48, D19 49, D19 57, 1906

Patent

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D04125320

REFERENCES:
patent: D223688 (1972-05-01), Schaur et al.
patent: D256135 (1980-07-01), Storms
patent: D338038 (1993-08-01), Oka et al.
patent: D341623 (1993-11-01), Chuang
patent: D355442 (1995-02-01), Chuang
patent: D378764 (1997-04-01), Araki et al.
patent: 1737798 (1929-12-01), Kinzinger
patent: 3338215 (1967-08-01), Chiu et al.
patent: 3708235 (1973-01-01), Kolomeir
patent: 3993409 (1976-11-01), Hart

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