It is a can opener
Finally I found a KLU 63, made by Amefa.In fact now only one is missing in my older type KL/KM/KLU collection: The KLu 74.
Thanks for the compliments! I wish the Dutch Army could offer me (and Agamemnon, Glenf and Osos as well) a financial citation... However, I will post in near future some pictures of my latest acquisition, a Wenger Master with blade lock. Please have patience!