JPS4431455Y1 - - Google Patents
Info
- Publication number
- JPS4431455Y1 JPS4431455Y1 JP1967081849U JP8184967U JPS4431455Y1 JP S4431455 Y1 JPS4431455 Y1 JP S4431455Y1 JP 1967081849 U JP1967081849 U JP 1967081849U JP 8184967 U JP8184967 U JP 8184967U JP S4431455 Y1 JPS4431455 Y1 JP S4431455Y1
- Authority
- JP
- Japan
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/124—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/121—Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1967081849U JPS4431455Y1 (pt) | 1967-09-27 | 1967-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1967081849U JPS4431455Y1 (pt) | 1967-09-27 | 1967-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4431455Y1 true JPS4431455Y1 (pt) | 1969-12-25 |
Family
ID=31813110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1967081849U Expired JPS4431455Y1 (pt) | 1967-09-27 | 1967-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4431455Y1 (pt) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10195653B2 (en) | 2011-09-20 | 2019-02-05 | Keystone Tower Systems, Inc. | Tapered structure construction |
-
1967
- 1967-09-27 JP JP1967081849U patent/JPS4431455Y1/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10195653B2 (en) | 2011-09-20 | 2019-02-05 | Keystone Tower Systems, Inc. | Tapered structure construction |