Expandable strip of teaching-aid

Details Expandable strip of teaching-aid Expandable strip of teaching-aid

2008-06-19

2009-02-03

Delehanty, Robert A. (Department: 2914)

Office supplies; artists and teachers materials

Teaching material

Demonstrator or exhibitor

Design Patent

active

D0585940

CLAIM:
The ornamental design for a “an expandable strip of teaching-aid,” as shown and described.

REFERENCES:
patent: D246441 (1977-11-01), Bergendorff
patent: D278068 (1985-03-01), Sager
patent: D293086 (1987-12-01), LeMarie
patent: D314712 (1991-02-01), Kunz
patent: D339376 (1993-09-01), Abe
patent: D376618 (1996-12-01), Hix
patent: D406538 (1999-03-01), Cornell et al.
patent: D426851 (2000-06-01), Carroll
patent: D457052 (2002-05-01), Snyder
patent: D480109 (2003-09-01), Jeffirs et al.
patent: D481071 (2003-10-01), Jeffirs et al.
patent: D486183 (2004-02-01), DeMaison
patent: D558849 (2008-01-01), Taira et al.

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