NL28552C - - Google Patents
Info
- Publication number
- NL28552C NL28552C NL28552DA NL28552C NL 28552 C NL28552 C NL 28552C NL 28552D A NL28552D A NL 28552DA NL 28552 C NL28552 C NL 28552C
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/38—Nitric acid
- C01B21/44—Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT690810X | 1929-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL28552C true NL28552C (da) |
Family
ID=11311298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL28552D NL28552C (da) | 1929-09-30 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE368135A (da) |
| DE (1) | DE521985C (da) |
| FR (1) | FR690810A (da) |
| NL (1) | NL28552C (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1056095B (de) * | 1956-09-28 | 1959-04-30 | Harry Pauling Dipl Ing | Verfahren zum Hochkonzentrieren von Salpetersaeure mittels Schwefelsaeure |
-
0
- NL NL28552D patent/NL28552C/xx active
- BE BE368135D patent/BE368135A/xx unknown
-
1930
- 1930-02-28 FR FR690810D patent/FR690810A/fr not_active Expired
- 1930-09-20 DE DE1930521985D patent/DE521985C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR690810A (fr) | 1930-09-26 |
| DE521985C (de) | 1931-03-28 |
| BE368135A (da) |