Z-shaped building block
USD326530S · kind S · design
10Cited by
5References
1Claims
0Family size
Inventor
Key dates
| Filing date | Sep 21, 1989 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | May 26, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.