Vertical pulse combustion boiler
USD343675S · kind S · design
0Cited by
13References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.