HMAK is from 1969 to present and means Hærens Materiel Kommando = Army Material Command.
M/75 is a German G3 bayonet. From 1975 the German G3 was introduced and most submachine guns put in store but the section commanders etc still had the M/62 on issue. Probably because they had so many of them and could save a few dollars. I have even seen machine gunners issued M/50 bayonets in lack of M/62 in a unit equipped with G3 rifles!
Now Denmark has the Canadian C7/C8A1 weapons and no bayonets, but a knife made by Austrian Glock and called Feltkniv model 1996 (fieldknife model 1996).