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| Number | Date | Country |
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| 281680 | Aug 1913 | DE |
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| 589062 | May 1925 | FR |
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| Entry |
|---|
| “Magic Maaze” Frongate Mail-Order Catalog, Summer 1995, p. 32. |
| Playhut brochure, date unknown. |
| Eileen Edinger letter, dated May 25, 1993. |
| Eileen Edinger Douglas letter, dated Aug. 26, 1996. |
| Patent Application re: prior art product sold in U.S. By Stephen A. Fausel and Paul S. Ziglar; specification for Collapsible Furniture, Jun. 1985. |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29425054 | Jun 2012 | US |
| Child | 29432608 | US |