Office supplies; artists and teachers materials – Teaching material – Terrestrial or extraterrestrial map or model
Patent
1999-03-23
2000-01-18
Holtje, Martie K.
Office supplies; artists and teachers materials
Teaching material
Terrestrial or extraterrestrial map or model
D19 59, 1907
Patent
active
D04191919
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patent: 3328899 (1967-07-01), Stewart
patent: 4673197 (1987-06-01), Shtipelman et al.
patent: 5385371 (1995-01-01), Izawa
patent: 5419586 (1995-05-01), Golson
patent: 5472239 (1995-12-01), Trujillo
Friedman Mark M.
Holtje Martie K.
The Knowledge Infrastructure Ltd.
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