I found a picture of the patent in a woodworking magazine. - Edit 2
Before modification by Burr at 08/10/2009 04:45:44 AM
You can zoom in once, but it's still blurry and small. I can make out the patent number, though: 4328991. Here's the URL:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=4328991.PN.&OS=PN/4328991&RS=PN/4328991)
In any case, the second designer is not Svein Gusrud, but Hans Mengshoel.
If you put Mengshoel into the U.S. Patent Office search, a few promising results show up.
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=4328991.PN.&OS=PN/4328991&RS=PN/4328991)
In any case, the second designer is not Svein Gusrud, but Hans Mengshoel.
If you put Mengshoel into the U.S. Patent Office search, a few promising results show up.