Pencil sharpener

Details Pencil sharpener Pencil sharpener

1999-10-13

2000-06-20

Holtje, Martie K.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

1906

Patent

active

D04268520

REFERENCES:
patent: D193457 (1962-08-01), Fleming
patent: D238669 (1976-02-01), MacGregor
patent: D383165 (1997-09-01), Gstalder
patent: D400586 (1998-11-01), Yuen
patent: 2822781 (1958-02-01), Burton

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