FR842446A - - Google Patents
Info
- Publication number
- FR842446A FR842446A FR842446DA FR842446A FR 842446 A FR842446 A FR 842446A FR 842446D A FR842446D A FR 842446DA FR 842446 A FR842446 A FR 842446A
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/10—Corrugating tubes transversely, e.g. helically by applying fluid pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR842446A true FR842446A (pt) | 1939-06-12 |
Family
ID=1554240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR842446D Expired FR842446A (pt) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR842446A (pt) |
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0
- FR FR842446D patent/FR842446A/fr not_active Expired