FR402558A - Helicopter - Google Patents
HelicopterInfo
- Publication number
- FR402558A FR402558A FR402558A FR402558DA FR402558A FR 402558 A FR402558 A FR 402558A FR 402558 A FR402558 A FR 402558A FR 402558D A FR402558D A FR 402558DA FR 402558 A FR402558 A FR 402558A
- 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
- B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
- B64C23/005—Influencing air flow over aircraft surfaces, not otherwise provided for by other means not covered by groups B64C23/02 - B64C23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR402558T | 1909-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR402558A true FR402558A (en) | 1909-10-12 |
Family
ID=1447275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR402558A Expired FR402558A (en) | 1909-03-17 | 1909-03-17 | Helicopter |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR402558A (en) |
-
1909
- 1909-03-17 FR FR402558A patent/FR402558A/en not_active Expired
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