I remember from school about radio, sound and light waves. It is interesting stuff.
This does look like a ruby laser on the stamp from 1965.
Thank you very much, i agree Best Regards
My kommentar this sak is a good sak
Hi, thank you very much for question. During the last decade of Wenger history you find with or without patent stamp. Quality the same. BR Trond
Hello. I have just bought a blue viking Wenger knife. But took my attention does doesn't take the PATENT sign in the open botlle tool. Is that possible? Thanks