Teaching aid for learning to tell time

Details Teaching aid for learning to tell time Teaching aid for learning to tell time

2001-04-27

2002-09-03

Holtje, Martie K. (Department: 2912)

Office supplies; artists and teachers materials

Teaching material

Demonstrator or exhibitor

CD19S062000, CD10S006000, CD10S128000

Design Patent

active

D0462390

CLAIM:
The ornamental design for a “teaching aid for learning to tell time”, substantially as shown and described.

REFERENCES:
patent: D54568 (1920-03-01), Weiwoda
patent: D108488 (1938-02-01), Carpenter
patent: 2567497 (1951-09-01), Sorensen
patent: D172317 (1954-05-01), Shellman
patent: D176177 (1955-11-01), Ellman
patent: 3034229 (1962-05-01), Kessler
patent: 4331427 (1982-05-01), Dotson
patent: D345321 (1994-03-01), Ryoichi
patent: D397621 (1998-09-01), Wright et al.

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