FR633853A - Operation of air navigation devices - Google Patents
Operation of air navigation devicesInfo
- Publication number
- FR633853A FR633853A FR633853DA FR633853A FR 633853 A FR633853 A FR 633853A FR 633853D A FR633853D A FR 633853DA FR 633853 A FR633853 A FR 633853A
- Authority
- FR
- France
- Prior art keywords
- navigation devices
- air navigation
- air
- devices
- navigation
- 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
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/005—Spiral-shaped propellers
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR633853T | 1927-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR633853A true FR633853A (en) | 1928-02-06 |
Family
ID=8993187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR633853D Expired FR633853A (en) | 1927-05-04 | 1927-05-04 | Operation of air navigation devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR633853A (en) |
-
1927
- 1927-05-04 FR FR633853D patent/FR633853A/en not_active Expired
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