Pencil sharpener

Details Pencil sharpener Pencil sharpener

1977-02-07

1978-08-29

Stearman, Joel

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

D1906

Patent

active

D02491524

REFERENCES:
patent: D59586 (1921-11-01), Green
patent: D120555 (1940-05-01), Pope
patent: D155008 (1949-08-01), Herman
patent: D199206 (1964-09-01), Rose
patent: D219318 (1970-11-01), Macowski

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