Industrial vacuum cleaner
USD255357S · kind S · design
29Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1976 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Jun 10, 1994 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.