BE718643A - - Google Patents
Info
- Publication number
- BE718643A BE718643A BE718643DA BE718643A BE 718643 A BE718643 A BE 718643A BE 718643D A BE718643D A BE 718643DA BE 718643 A BE718643 A BE 718643A
- Authority
- BE
- Belgium
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671602272 DE1602272A1 (de) | 1967-07-27 | 1967-07-27 | Verfahren und Vorrichtung zur Herstellung von Metallrippenrohren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE718643A true BE718643A (en:Method) | 1968-12-31 |
Family
ID=5681015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE718643D BE718643A (en:Method) | 1967-07-27 | 1968-07-26 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE718643A (en:Method) |
| CH (1) | CH473619A (en:Method) |
| FR (1) | FR1603044A (en:Method) |
-
1968
- 1968-07-25 CH CH1120268A patent/CH473619A/de not_active IP Right Cessation
- 1968-07-26 FR FR1603044D patent/FR1603044A/fr not_active Expired
- 1968-07-26 BE BE718643D patent/BE718643A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH473619A (de) | 1969-06-15 |
| FR1603044A (en:Method) | 1971-03-15 |