FR999351A - - Google Patents
Info
- Publication number
- FR999351A FR999351A FR999351DA FR999351A FR 999351 A FR999351 A FR 999351A FR 999351D A FR999351D A FR 999351DA FR 999351 A FR999351 A FR 999351A
- Authority
- FR
- France
- 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
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR999351A true FR999351A (de) | 1952-01-31 |
Family
ID=1567290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR999351D Expired FR999351A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR999351A (de) |
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0
- FR FR999351D patent/FR999351A/fr not_active Expired