Pencil sharpener

Details Pencil sharpener Pencil sharpener

1977-05-18

1979-09-11

Stearman, Joel

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

D1906

Patent

active

D02528835

REFERENCES:
patent: D39713 (1908-12-01), Perry
patent: D42862 (1912-08-01), Seeburg
patent: D43842 (1913-04-01), Crosby
patent: D66515 (1925-01-01), Orsenigo
Calderon Co., Inc. Flyer 2/77, Item #925.

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