U.S. patent number D367,675 [Application Number 07/612,899] was granted by the patent office on 1996-03-05 for educational model. Invention is credited to Robert M. Welch.
United States Patent | D367,675 |
Welch | March 5, 1996 |
Inventors: | Welch; Robert M. (Huntington Beach, CA) |
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Appl. No.: | 07/612,899 |
Filed: | November 13, 1990 |
Current U.S. Class: | D19/59; D11/131; D19/62 |
Field of Search: | ;D19/59 ;D25/13 ;434/211 ;428/3 ;273/327 ;D11/131 |
4274222 | June 1981 | Zahn et al. |
4701131 | October 1987 | Hildebrandt et al. |
R M. Welch, "Monument to Liberty Instructions", Model FA Assembly Kit, distributed at the National Council for the Social Sciences, Nov. 12, 1989. . R. M. Welch, "Monument to Liberty--A U.S. Constitution Teaching Aid", distributed at the National Council for the Social Sciences, St. Louis, Missouri, Nov. 12, 1989. . Polyhedron Models; 1971; Mangus J. Wenninger; p. 25 Cuboctahedron. . Polyhedron Models; 1971; Mognus J. Wenninger; p. 48; Icosahedron. . R. M. Welch, "Monument to Liberty--A U.S. Constitution Teaching Aid," presented at an NCSS Conference in Apr. 1988. . California Teachers Association, "Action Newspaper," vol. 27, No. 8, p. 7, May 1989. . McDonnell Douglas Employee Newspaper "Focus," vol. 3, No. 6, p. 7, May 1989.. |
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