Improvements in and relating to the formation of helically wound lock-seam tubing
A Standard patent application filed on 28 October 1991 credited to Walkowski, Paul Georg
Details
Application number :
87636
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Improvements in and relating to the formation of helically wound lock-seam tubing