CPC C21B13/02
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CPC C21B13/02 is a patent class for Making spongy iron or liquid steel in shaft furnaces by direct processes.[1][2]
References
- ↑ CPC C21B13/02 element at Espacenet web site
- ↑ CPC C21B13/02 element listed at USPTO
This wiki has 0 patents in category "CPC C21B13/02".
| Enclosing categories | CPC C21B13/00, CPC C21B |
|---|---|
| Subcategories | |
| Keywords | furnace, Steel |
| Start year | |
| End year |
