Set of fraction cards

Details Set of fraction cards Set of fraction cards

2007-04-24

2007-04-24

Zarfas, Louis (Department: 2914)

Office supplies; artists and teachers materials

Teaching material

Demonstrator or exhibitor

Design Patent

active

29265682

CLAIM:
The ornamental design for a set of fraction cards, as shown and described.

REFERENCES:
patent: 1275869 (1918-08-01), Deal
patent: D163085 (1951-05-01), Bishop
patent: D168834 (1953-02-01), Farinacci
patent: D173363 (1954-11-01), Louis
patent: 4812123 (1989-03-01), House
patent: D302566 (1989-08-01), Wolf
patent: 5192077 (1993-03-01), Caicedo
patent: 5470234 (1995-11-01), Sher
patent: D376326 (1996-12-01), Wilson
patent: 5823783 (1998-10-01), Adams
patent: 7052279 (2006-05-01), Losq
patent: 2006/0157932 (2006-07-01), Latell

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