Pencil sharpener

Details Pencil sharpener Pencil sharpener

1998-12-04

1999-11-30

Holtje, Martie K.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

D19 73, 1906

Patent

active

D04172388

REFERENCES:
patent: D52549 (1918-10-01), Wilson
patent: D151456 (1948-10-01), Kihlberg
patent: D152528 (1949-02-01), Godfrey
patent: D158296 (1950-04-01), Landeborn
patent: D164827 (1951-10-01), Tall
patent: 972488 (1910-10-01), Wilson
patent: 1285528 (1918-11-01), Wilson
patent: 3279437 (1966-10-01), Rubinstein et al.
patent: 4759129 (1988-07-01), Alpha
Miller Office Products Catalog, page 761 see item B, upper right 1995.

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