FR678481A - - Google Patents
Info
- Publication number
- FR678481A FR678481A FR678481DA FR678481A FR 678481 A FR678481 A FR 678481A FR 678481D A FR678481D A FR 678481DA FR 678481 A FR678481 A FR 678481A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR678481A true FR678481A (xx) | 1930-03-22 |
Family
ID=1543715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR678481D Expired FR678481A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR678481A (xx) |
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0
- FR FR678481D patent/FR678481A/fr not_active Expired