Help on id of Danish "knock down" type chairs  

I just picked these up recently and was wondering if anyone could help me indentify them. They are the knock down type and come apart very easily. The only marking on them are "Made in Denmark" stamped on the bottom of each piece the only difference being there is a style# of 4001 on the arm pieces. Through searching I have seen many made in Sweden that are similar but couldn't find any with the curved arms like these.
If you click the web link it will bring you to a set that I have created for the chairs
thanks for any info!!!
http://www.flickr.com/photos/22021175@N02/sets/72157638386636793/
<img class="wpforo-defaul