Concrete mixer
USD319832S · kind S · design
12Cited by
6References
1Claims
0Family size
Inventor
Key dates
| Filing date | Nov 24, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Sep 10, 2005 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.