Hot water extraction-type carpet cleaning machine
USD243311S · kind S · design
8Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1975 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Feb 8, 1991 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.