NL21357C - - Google Patents
Info
- Publication number
- NL21357C NL21357C NL31722A NL31722A NL21357C NL 21357 C NL21357 C NL 21357C NL 31722 A NL31722 A NL 31722A NL 31722 A NL31722 A NL 31722A NL 21357 C NL21357 C NL 21357C
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/06—Refining
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21357XA | 1924-12-11 | 1924-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL21357C true NL21357C (en:Method) | 1930-01-17 |
Family
ID=1788092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL31722A NL21357C (en:Method) | 1924-12-11 | 1925-11-04 |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL21357C (en:Method) |
-
1925
- 1925-11-04 NL NL31722A patent/NL21357C/xx active