Children's educational toy

Details Children's educational toy Children's educational toy

1997-03-24

1998-02-10

Thompson, Martie

Office supplies; artists and teachers materials

Teaching material

D21 59, D21 63, D19 62, 1907

Patent

active

D03906035

REFERENCES:
patent: D190159 (1961-04-01), Goldstein
patent: D218384 (1970-08-01), Lambert
patent: D284679 (1986-07-01), Livesey et al.
patent: D298956 (1988-12-01), Zinter-Chahin
patent: D341166 (1993-11-01), Koike
patent: D345386 (1994-03-01), Gilliam-Ogle
patent: D370818 (1996-06-01), D'Alessio
patent: 2839843 (1958-06-01), Keyko
patent: 4988321 (1991-01-01), Goldfarb
patent: 5169209 (1992-12-01), Beroth
patent: 5190287 (1993-03-01), Ishiyama
patent: 5290090 (1994-03-01), Bell et al.
patent: 5443018 (1995-08-01), Cromwell
patent: 5553856 (1996-09-01), Barnard

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