I bought a bike that was painted over, so I don’t know what model it is.

I was advised to try to guess it by the chainring, which is this one:

Since I had this in mind I noticed two announcements on the internet, two bikes featuring this chainring. However, for none of those the components are close to those on my bike

First is a Viner Pistoia that I found on Blocket

The other one was a Puch Bergmeister:
http://www.ebay.com/itm/AUSTRO-DAIMLER-PUCH-Bergmeister-Road-Touring-Bike-Old-School-Made-in-Austria/111976725544?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D36499%26meid%3D96329ce56dcb478dbdf35968564a9c66%26pid%3D100011%26rk%3D1%26rkt%3D4%26sd%3D111605747437

I think today I found the answer to the question. The chain-ring is pretty common on DBS bikes, a Norwegian brand that sold quite a lot in Sweden, too. I noticed a DBS bike with exactly the same chainring ad similar components. Can be a DBS Winner or a similar model. Here is the bike I saw today: