Housing for use with manipulative games
USD255038S · kind S · design
45Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1978 |
| Grant date | May 20, 1980 |
| Priority date | — |
| Expiry date | May 20, 1994 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.