G.M.Sch. = Gebrauchs Muster Schutz, today: Gebrauchsmusterschutz. The Gebrauchsmusterschutz is the "little brother" of the patent and an industrial property right. The differences to the patent have become smaller with the latest amendments to the Utility Model Act.
From Wikepedia:
Otto Bock had his company in Berlin W. 8 from 1883 to 1926, first in Kronenstr. 9 and later in Kronenstraße 7. He was royal Prussian court supplier to the Emperor and King of the Hohenzollerns and the Crown Prince. In 1901, he produced a ceremonial rifle for the Shah of Persia.
In 1905, at the suggestion of the German colonial administration, he developed the 9.3 × 62 mm hunting rifle cartridge for the colonial settlers in what was then German Southwest Africa, now Namibia, from the 8 × 57 mm IS military ordnance cartridge. The cartridge was intended to be fired from inexpensive rifles, i.e. normal carbine 98k systems, and still be suitable for hunting savannah game and self-defense against dangerous African big game. The cartridge is still very popular with hunters of strong European big game such as wild boar, red deer and elk.
Waidmannsheil,
Wolfgang
