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FI914081A7 - Sheet metal strip, method and apparatus for manufacturing spirally welded pipes - Google Patents

Sheet metal strip, method and apparatus for manufacturing spirally welded pipes Download PDF

Info

Publication number
FI914081A7
FI914081A7 FI914081A FI914081A FI914081A7 FI 914081 A7 FI914081 A7 FI 914081A7 FI 914081 A FI914081 A FI 914081A FI 914081 A FI914081 A FI 914081A FI 914081 A7 FI914081 A7 FI 914081A7
Authority
FI
Finland
Prior art keywords
sheet metal
metal strip
welded pipes
spirally welded
manufacturing spirally
Prior art date
Application number
FI914081A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI914081A0 (en
Inventor
Walter Schwarz
Original Assignee
Spiro Maschinen Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Spiro Maschinen Ag filed Critical Spiro Maschinen Ag
Priority claimed from PCT/EP1990/002082 external-priority patent/WO1991009693A1/en
Publication of FI914081A0 publication Critical patent/FI914081A0/en
Publication of FI914081A7 publication Critical patent/FI914081A7/en

Links

FI914081A 1990-01-02 1990-12-04 Sheet metal strip, method and apparatus for manufacturing spirally welded pipes FI914081A7 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT9090 1990-01-02
PCT/EP1990/002082 WO1991009693A1 (en) 1990-01-02 1990-12-04 Sheet steel strip, process and device for manufacturing lock seam tubing with helical seams

Publications (2)

Publication Number Publication Date
FI914081A0 FI914081A0 (en) 1991-08-29
FI914081A7 true FI914081A7 (en) 1991-08-29

Family

ID=95700193

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914081A FI914081A7 (en) 1990-01-02 1990-12-04 Sheet metal strip, method and apparatus for manufacturing spirally welded pipes

Country Status (2)

Country Link
FI (1) FI914081A7 (en)
NO (1) NO913099D0 (en)

Also Published As

Publication number Publication date
FI914081A0 (en) 1991-08-29
NO913099L (en) 1991-08-08
NO913099D0 (en) 1991-08-08

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Legal Events

Date Code Title Description
FD Application lapsed