FR545789A - Hélicoptère - Google Patents
HélicoptèreInfo
- Publication number
- FR545789A FR545789A FR545789DA FR545789A FR 545789 A FR545789 A FR 545789A FR 545789D A FR545789D A FR 545789DA FR 545789 A FR545789 A FR 545789A
- Authority
- FR
- France
- Prior art keywords
- helicopter
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/20—Rotorcraft characterised by having shrouded rotors, e.g. flying platforms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO545789X | 1921-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR545789A true FR545789A (fr) | 1922-10-20 |
Family
ID=20086617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR545789D Expired FR545789A (fr) | 1921-05-13 | 1922-01-11 | Hélicoptère |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR545789A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2628683A (en) * | 1947-04-01 | 1953-02-17 | Harold H Reuther | Rotor means for helicopters and the like |
-
1922
- 1922-01-11 FR FR545789D patent/FR545789A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2628683A (en) * | 1947-04-01 | 1953-02-17 | Harold H Reuther | Rotor means for helicopters and the like |
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