Self-propelled carpet shampooing machine
USD274380S · kind S · design
17Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1982 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | Jun 19, 1998 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.