FR490512A - Improvements to airplanes - Google Patents
Improvements to airplanesInfo
- Publication number
- FR490512A FR490512A FR490512A FR490512DA FR490512A FR 490512 A FR490512 A FR 490512A FR 490512 A FR490512 A FR 490512A FR 490512D A FR490512D A FR 490512DA FR 490512 A FR490512 A FR 490512A
- Authority
- FR
- France
- Prior art keywords
- airplanes
- Prior art date
- 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/60—Isolation of sulfur dioxide from gases
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US490512XA | 1916-03-29 | 1916-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR490512A true FR490512A (en) | 1919-04-26 |
Family
ID=21957803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR490512A Expired FR490512A (en) | 1916-03-29 | 1917-12-27 | Improvements to airplanes |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR490512A (en) |
GB (1) | GB490512A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2589684A (en) * | 1947-10-03 | 1952-03-18 | Ici Ltd | Recovery of so2 |
DE1267671C2 (en) * | 1963-12-03 | 1973-02-15 | Zieren Chemiebau Gmbh Dr A | Process for the recovery of sulfur oxides and ammonia from the aqueous scrubbing solution of the ammonia laundry of exhaust gases containing sulfur dioxide |
-
1917
- 1917-12-27 FR FR490512A patent/FR490512A/en not_active Expired
-
1936
- 1936-11-11 GB GB30843/36A patent/GB490512A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB490512A (en) | 1938-08-11 |
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