Carpet cleaning machine
USD274851S · kind S · design
20Cited by
4References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jun 1, 1981 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Jul 24, 1998 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.