It looks like you have the canonical set to this page http://www.citcop.se/panasonic-nordic-ce9nke-5-0kw So you should be good there. That tells the SEs not to worry about the others.
This URL 404s http://www.citcop.se/panasonic/panasonic-nordic-ce9nke-5-0kw
You could 301 the others by going to Catalog > click Add URL Rewrite > then choose Custom in the dropdown. However, it looks like http://www.citcop.se/varmepumpar-luft-luft/panasonic/panasonic-nordic-ce9nke-5-0kw is using the category structure in the URL and the category tree in the left nav. You could use that one as the canonical.
We don't use category paths for product URLs on our site, runs on Magento, so product URLs are flat - domain.com/product-path.html
You can set that under System > Catalog > Search Engine Optimizations > then set Use Categories Path for Product URLs to No.